FERM domain C-lobe of FERM and PDZ domain containing proteins 1, 3, and 4 (FRMPD1, 3, 4); The function of FRMPD1, FRMPD3, and FRMPD4 is unknown at present. These proteins contain an N-terminal PDZ (post synaptic density protein (PSD95), Drosophila disc large tumor suppressor (Dlg1), and zonula occludens-1 protein (zo-1) domain and a C-terminal FERM domain. PDZ (also known as DHR (Dlg homologous region) or GLGF (glycine-leucine-glycine-phenylalanine) domains) help anchor transmembrane proteins to the cytoskeleton and hold together signaling complexes. PDZ domains bind to a short region of the C-terminus of other specific proteins. The FERM domain is composed of three subdomains: (1) FERM_N (A-lobe or F1); (2) FERM_M (B-lobe, or F2); and (3) FERM_C (C-lobe or F3), which form a clover leaf fold. The C-lobe/F3 within the FERM domain is part of the PH domain family. The FERM domain is found in the cytoskeletal-associated proteins such as ezrin, moesin, radixin, 4.1R, and merlin. These proteins provide a link between the membrane and cytoskeleton and are involved in signal transduction pathways. The FERM domain is also found in protein tyrosine phosphatases (PTPs) , the tyrosine kinases FAK and JAK, in addition to other proteins involved in signaling. This domain is structurally similar to the PH and PTB domains and consequently is capable of binding to both peptides and phospholipids at different sites.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1696926926  397 GGRIFNATLMLQDRESYIALLVGAKYGISQVINSKLNIMSTLAEFANISRVELTEESEKVSVVKVYLQDVKVLTLLLESN 476
Cdd:cd13183      1 GGRSFQATLMLQDRESEVTLLVGPRYGISHVINHKLNLLALLAEFSHISRIELLRESDKVSRVELHIHDVKPITLLMESP 80

                           90       100
                   ....*....|....*....|....*
gi 1696926926  477 SAKDLACLIAGYYRLLVDPVTSIFL 501
Cdd:cd13183     81 DAKDLACLIAGYYRLLVDPRRSIFS 105

PDZ domain of FERM and PDZ domain-containing protein 1 (FRMPD1), FRMPD3, FRMPD4, and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain of FRMPD1, FRMPD3, FRMPD4, and related domains. FRMPD1 (also known as FERM domain-containing protein 2, FRMD2), inhibits the malignant phenotype of lung cancer by activating the Hippo pathway via interaction with WWC3; the FRMPD1 PDZ domain binds WWC3. FRMPD3 is a target gene of the neuron-specific transcription factor NPAS4 that is involved in synaptic plasticity. FRMPD4 (also known as PDZ domain-containing protein 10, PDZD10, PDZK10, PSD-95-interacting regulator of spine morphogenesis, and Preso) regulates dendritic spine morphogenesis, and mGluR1/5 signaling; the FRMPD4 PDZ domain binds PAK-interacting exchange factor-beta (betaPix). PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This FRMPD1,3,4-like family domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1696926926   57 TVKIDKDTLLqDYGFHISESLPLTVVAVTAGGSAHGKLFPGDQILQMNNEPAEDLSWERAVDILREAEDSLSITVV 132
Cdd:cd06769      1 TVEIQRDAVL-GFGFVAGSERPVVVRSVTPGGPSEGKLLPGDQILKINNEPVEDLPRERVIDLIRECKDSIVLTVL 75

transcriptional regulator ICP4; Provisional

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1696926926  555 KEEQPPGNSPTPEVARRGPSTCGASSTTDSAESEASDSANTESRGYRTSGSSESMDALE-EDDLDTCSSSRSTFFHFGSP 633
Cdd:PHA03307   119 PTPPPASPPPSPAPDLSEMLRPVGSPGPPPAASPPAAGASPAAVASDAASSRQAALPLSsPEETARAPSSPPAEPPPSTP 198

                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1696926926  634 GLAESidsDSQEERSGIETSGFLCL--LDLAQRANPQCQKTEFSESAALETFGWAPE-------LSTVRLDPRLYEGSHA 704
Cdd:PHA03307   199 PAAAS---PRPPRRSSPISASASSPapAPGRSAADDAGASSSDSSSSESSGCGWGPEnecplprPAPITLPTRIWEASGW 275

                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1696926926  705 DYY-SLCSSVSPASYLSDSSESTASRQGGAPPAwgqqgwteAQPSSMLEPLALHPPLAFEDGSSDEEYYDAADklTPPGP 783
Cdd:PHA03307   276 NGPsSRPGPASSSSSPRERSPSPSPSSPGSGPA--------PSSPRASSSSSSSRESSSSSTSSSSESSRGAA--VSPGP 345

                          250       260       270       280
                   ....*....|....*....|....*....|....*....|....*.
gi 1696926926  784 PSG--PRDVSTAEPSATSLQNKASTSSPENSLPCGPDGRQPSRRGG 827
Cdd:PHA03307   346 SPSrsPSPSRPPPPADPSSPRKRPRPSRAPSSPAASAGRPTRRRAR 391

FERM domain C-lobe of FERM and PDZ domain containing proteins 1, 3, and 4 (FRMPD1, 3, 4); The function of FRMPD1, FRMPD3, and FRMPD4 is unknown at present. These proteins contain an N-terminal PDZ (post synaptic density protein (PSD95), Drosophila disc large tumor suppressor (Dlg1), and zonula occludens-1 protein (zo-1) domain and a C-terminal FERM domain. PDZ (also known as DHR (Dlg homologous region) or GLGF (glycine-leucine-glycine-phenylalanine) domains) help anchor transmembrane proteins to the cytoskeleton and hold together signaling complexes. PDZ domains bind to a short region of the C-terminus of other specific proteins. The FERM domain is composed of three subdomains: (1) FERM_N (A-lobe or F1); (2) FERM_M (B-lobe, or F2); and (3) FERM_C (C-lobe or F3), which form a clover leaf fold. The C-lobe/F3 within the FERM domain is part of the PH domain family. The FERM domain is found in the cytoskeletal-associated proteins such as ezrin, moesin, radixin, 4.1R, and merlin. These proteins provide a link between the membrane and cytoskeleton and are involved in signal transduction pathways. The FERM domain is also found in protein tyrosine phosphatases (PTPs) , the tyrosine kinases FAK and JAK, in addition to other proteins involved in signaling. This domain is structurally similar to the PH and PTB domains and consequently is capable of binding to both peptides and phospholipids at different sites.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1696926926  397 GGRIFNATLMLQDRESYIALLVGAKYGISQVINSKLNIMSTLAEFANISRVELTEESEKVSVVKVYLQDVKVLTLLLESN 476
Cdd:cd13183      1 GGRSFQATLMLQDRESEVTLLVGPRYGISHVINHKLNLLALLAEFSHISRIELLRESDKVSRVELHIHDVKPITLLMESP 80

                           90       100
                   ....*....|....*....|....*
gi 1696926926  477 SAKDLACLIAGYYRLLVDPVTSIFL 501
Cdd:cd13183     81 DAKDLACLIAGYYRLLVDPRRSIFS 105

PDZ domain of FERM and PDZ domain-containing protein 1 (FRMPD1), FRMPD3, FRMPD4, and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain of FRMPD1, FRMPD3, FRMPD4, and related domains. FRMPD1 (also known as FERM domain-containing protein 2, FRMD2), inhibits the malignant phenotype of lung cancer by activating the Hippo pathway via interaction with WWC3; the FRMPD1 PDZ domain binds WWC3. FRMPD3 is a target gene of the neuron-specific transcription factor NPAS4 that is involved in synaptic plasticity. FRMPD4 (also known as PDZ domain-containing protein 10, PDZD10, PDZK10, PSD-95-interacting regulator of spine morphogenesis, and Preso) regulates dendritic spine morphogenesis, and mGluR1/5 signaling; the FRMPD4 PDZ domain binds PAK-interacting exchange factor-beta (betaPix). PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This FRMPD1,3,4-like family domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1696926926   57 TVKIDKDTLLqDYGFHISESLPLTVVAVTAGGSAHGKLFPGDQILQMNNEPAEDLSWERAVDILREAEDSLSITVV 132
Cdd:cd06769      1 TVEIQRDAVL-GFGFVAGSERPVVVRSVTPGGPSEGKLLPGDQILKINNEPVEDLPRERVIDLIRECKDSIVLTVL 75

LGN tetratricopeptide repeat-binding domain found in FERM and PDZ domain-containing protein 1; FERM and PDZ domain-containing protein 1 (FRMPD1), also called FERM domain-containing protein 2 (FRMD2), stabilizes membrane-bound GPSM1, and thereby promotes its interaction with GNAI1. It also acts as a regulatory binding partner of Activator of G-protein Signaling 3 (AGS3). This model corresponds to a conserved region in FRMPD1 that binds to tetratricopeptide (TPR) repeats present in the N-terminal domain of adaptor protein LGN. LGN plays a crucial role in mitotic spindle orientation and cell polarization via interaction with multiple targets including FRMPD1.

                           10        20        30
                   ....*....|....*....|....*....|....*...
gi 1696926926  901 ALGLLAPLRETKSTNPASRVMEMEPETMETKSVIDSRV 938
Cdd:cd21942      1 SFGQLKSQRPTKNKNLSSELMEMEPDTMETKSVTDSVV 38

Domain present in PSD-95, Dlg, and ZO-1/2; Also called DHR (Dlg homologous region) or GLGF (relatively well conserved tetrapeptide in these domains). Some PDZs have been shown to bind C-terminal polypeptides; others appear to bind internal (non-C-terminal) polypeptides. Different PDZs possess different binding specificities.

                            10        20        30        40        50        60        70        80
                    ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1696926926    54 VRHTVKIDKDTllQDYGFHIS----ESLPLTVVAVTAGGSAHGK-LFPGDQILQMNNEPAEDLSWERAVDILREAEDSLS 128
Cdd:smart00228    1 EPRLVELEKGG--GGLGFSLVggkdEGGGVVVSSVVPGSPAAKAgLRVGDVILEVNGTSVEGLTHLEAVDLLKKAGGKVT 78

                    ....*
gi 1696926926   129 ITVVR 133
Cdd:smart00228   79 LTVLR 83

transcriptional regulator ICP4; Provisional

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1696926926  555 KEEQPPGNSPTPEVARRGPSTCGASSTTDSAESEASDSANTESRGYRTSGSSESMDALE-EDDLDTCSSSRSTFFHFGSP 633
Cdd:PHA03307   119 PTPPPASPPPSPAPDLSEMLRPVGSPGPPPAASPPAAGASPAAVASDAASSRQAALPLSsPEETARAPSSPPAEPPPSTP 198

                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1696926926  634 GLAESidsDSQEERSGIETSGFLCL--LDLAQRANPQCQKTEFSESAALETFGWAPE-------LSTVRLDPRLYEGSHA 704
Cdd:PHA03307   199 PAAAS---PRPPRRSSPISASASSPapAPGRSAADDAGASSSDSSSSESSGCGWGPEnecplprPAPITLPTRIWEASGW 275

                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1696926926  705 DYY-SLCSSVSPASYLSDSSESTASRQGGAPPAwgqqgwteAQPSSMLEPLALHPPLAFEDGSSDEEYYDAADklTPPGP 783
Cdd:PHA03307   276 NGPsSRPGPASSSSSPRERSPSPSPSSPGSGPA--------PSSPRASSSSSSSRESSSSSTSSSSESSRGAA--VSPGP 345

                          250       260       270       280
                   ....*....|....*....|....*....|....*....|....*.
gi 1696926926  784 PSG--PRDVSTAEPSATSLQNKASTSSPENSLPCGPDGRQPSRRGG 827
Cdd:PHA03307   346 SPSrsPSPSRPPPPADPSSPRKRPRPSRAPSSPAASAGRPTRRRAR 391

FERM domain C-lobe of FERM and PDZ domain containing proteins 1, 3, and 4 (FRMPD1, 3, 4); The function of FRMPD1, FRMPD3, and FRMPD4 is unknown at present. These proteins contain an N-terminal PDZ (post synaptic density protein (PSD95), Drosophila disc large tumor suppressor (Dlg1), and zonula occludens-1 protein (zo-1) domain and a C-terminal FERM domain. PDZ (also known as DHR (Dlg homologous region) or GLGF (glycine-leucine-glycine-phenylalanine) domains) help anchor transmembrane proteins to the cytoskeleton and hold together signaling complexes. PDZ domains bind to a short region of the C-terminus of other specific proteins. The FERM domain is composed of three subdomains: (1) FERM_N (A-lobe or F1); (2) FERM_M (B-lobe, or F2); and (3) FERM_C (C-lobe or F3), which form a clover leaf fold. The C-lobe/F3 within the FERM domain is part of the PH domain family. The FERM domain is found in the cytoskeletal-associated proteins such as ezrin, moesin, radixin, 4.1R, and merlin. These proteins provide a link between the membrane and cytoskeleton and are involved in signal transduction pathways. The FERM domain is also found in protein tyrosine phosphatases (PTPs) , the tyrosine kinases FAK and JAK, in addition to other proteins involved in signaling. This domain is structurally similar to the PH and PTB domains and consequently is capable of binding to both peptides and phospholipids at different sites.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1696926926  397 GGRIFNATLMLQDRESYIALLVGAKYGISQVINSKLNIMSTLAEFANISRVELTEESEKVSVVKVYLQDVKVLTLLLESN 476
Cdd:cd13183      1 GGRSFQATLMLQDRESEVTLLVGPRYGISHVINHKLNLLALLAEFSHISRIELLRESDKVSRVELHIHDVKPITLLMESP 80

                           90       100
                   ....*....|....*....|....*
gi 1696926926  477 SAKDLACLIAGYYRLLVDPVTSIFL 501
Cdd:cd13183     81 DAKDLACLIAGYYRLLVDPRRSIFS 105

FERM (Four.1 protein, Ezrin, Radixin, Moesin) domain, F1 sub-domain, found in FERM and PDZ domain-containing protein 4 (FRMPD4); FRMPD4, also termed PDZ domain-containing protein 10, or PSD-95-interacting regulator of spine morphogenesis (Preso), is a multiscaffolding protein that modulates both Homer1 and postsynaptic density protein 95 activity. It can associate with the tetratricopeptide repeat (TPR) motif-containing adaptor protein LGN. Moreover, FRMPD4 is asymmetrically distributed in the cytosol and nuclei of neural stem/progenitor cells in the adult brain, suggesting a significant role in cell differentiation via association with cell polarity machinery. FRMPD4 contains a WW domain, a PDZ domain, and a FERM domain. The FERM domain is made up of three sub-domains, F1, F2, and F3. This family corresponds to the F1 sub-domain of the FERM domain, which is also called the N-terminal ubiquitin-like structural domain of the FERM domain (FERM_N).

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1696926926  179 MPNVLKLYLENGQTKAFKFEANTTVKDIILTVKEKLSIRSIEYFALALEEQY--SISRLHLLHEEELIQQVVEREESHDY 256
Cdd:cd17170      2 MPNVLKVYLENGQTKSFRFDCSTSIKDVILTLQEKLSIKCIEHFSLMLEQRTegSGTKLLLLHEQETLTQVTQRPGSHKM 81

                           90
                   ....*....|...
gi 1696926926  257 RCLFRVCFVPKDP 269
Cdd:cd17170     82 RCLFRISFVPKDP 94

PDZ domain of FERM and PDZ domain-containing protein 1 (FRMPD1), FRMPD3, FRMPD4, and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain of FRMPD1, FRMPD3, FRMPD4, and related domains. FRMPD1 (also known as FERM domain-containing protein 2, FRMD2), inhibits the malignant phenotype of lung cancer by activating the Hippo pathway via interaction with WWC3; the FRMPD1 PDZ domain binds WWC3. FRMPD3 is a target gene of the neuron-specific transcription factor NPAS4 that is involved in synaptic plasticity. FRMPD4 (also known as PDZ domain-containing protein 10, PDZD10, PDZK10, PSD-95-interacting regulator of spine morphogenesis, and Preso) regulates dendritic spine morphogenesis, and mGluR1/5 signaling; the FRMPD4 PDZ domain binds PAK-interacting exchange factor-beta (betaPix). PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This FRMPD1,3,4-like family domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*.
gi 1696926926   57 TVKIDKDTLLqDYGFHISESLPLTVVAVTAGGSAHGKLFPGDQILQMNNEPAEDLSWERAVDILREAEDSLSITVV 132
Cdd:cd06769      1 TVEIQRDAVL-GFGFVAGSERPVVVRSVTPGGPSEGKLLPGDQILKINNEPVEDLPRERVIDLIRECKDSIVLTVL 75

FERM central domain; This domain is the central structural domain of the FERM domain.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1696926926  269 PLDLLKEDPVAFEYLYLQSCSDVLQERFAVEmkCSSALRLAALHIQERIYACAQPQKISlkyieKDWGIENFISPTLLRN 348
Cdd:pfam00373    1 DLELLLQDEVTRHLLYLQAKDDILEGRLPCS--EEEALLLAALQLQAEFGDYQPSSHTS-----EYLSLESFLPKQLLRK 73

                           90       100       110       120       130
                   ....*....|....*....|....*....|....*....|....*....|...
gi 1696926926  349 MKGKDIKKAISFHMKRNQNLleprqkqliSAAQLRLNYLQILGELKTYGGRIF 401
Cdd:pfam00373   74 MKSKELEKRVLEAHKNLRGL---------SAEEAKLKYLQIAQSLPTYGVEFF 117

LGN tetratricopeptide repeat-binding domain found in FERM and PDZ domain-containing protein 1; FERM and PDZ domain-containing protein 1 (FRMPD1), also called FERM domain-containing protein 2 (FRMD2), stabilizes membrane-bound GPSM1, and thereby promotes its interaction with GNAI1. It also acts as a regulatory binding partner of Activator of G-protein Signaling 3 (AGS3). This model corresponds to a conserved region in FRMPD1 that binds to tetratricopeptide (TPR) repeats present in the N-terminal domain of adaptor protein LGN. LGN plays a crucial role in mitotic spindle orientation and cell polarization via interaction with multiple targets including FRMPD1.

                           10        20        30
                   ....*....|....*....|....*....|....*...
gi 1696926926  901 ALGLLAPLRETKSTNPASRVMEMEPETMETKSVIDSRV 938
Cdd:cd21942      1 SFGQLKSQRPTKNKNLSSELMEMEPDTMETKSVTDSVV 38

FERM domain B-lobe; The FERM domain has a cloverleaf tripart structure (FERM_N, FERM_M, FERM_C/N, alpha-, and C-lobe/A-lobe, B-lobe, C-lobe/F1, F2, F3). The FERM domain is found in the cytoskeletal-associated proteins such as ezrin, moesin, radixin, 4.1R, and merlin. These proteins provide a link between the membrane and cytoskeleton and are involved in signal transduction pathways. The FERM domain is also found in protein tyrosine phosphatases, the tyrosine kinases FAK and JAK, in addition to other proteins involved in signaling. This domain is structurally similar to the pleckstrin homology (PH) and phosphotyrosine binding (PTB) domains and consequently is capable of binding to both peptides and phospholipids at different sites.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1696926926  279 AFEYLYLQSCSDVLQERFAVemKCSSALRLAALHIQeRIYACAQPQKISLKYIekdwGIENFISPTLLRNMKGKDIKKAI 358
Cdd:cd14473      1 TRYLLYLQVKRDILEGRLPC--SEETAALLAALALQ-AEYGDYDPSEHKPKYL----SLKRFLPKQLLKQRKPEEWEKRI 73

                           90       100       110
                   ....*....|....*....|....*....|....*
gi 1696926926  359 SFHMKRNQNLleprqkqliSAAQLRLNYLQILGEL 393
Cdd:cd14473     74 VELHKKLRGL---------SPAEAKLKYLKIARKL 99

LGN tetratricopeptide repeat-binding domain found in FERM and PDZ domain-containing proteins FRMPD1, FRMPD4, and similar proteins; The family includes FRMPD1, FRMPD4, and similar proteins. FRMPD1, also called FERM domain-containing protein 2 (FRMD2), stabilizes membrane-bound GPSM1, and thereby promotes its interaction with GNAI1. It also acts as a regulatory binding partner of Activator of G-protein Signaling 3 (AGS3). FRMPD4, also called PDZ domain-containing protein 10 (PDZD10), PDZK10, or PSD-95-interacting regulator of spine morphogenesis (Preso), is a novel PSD-95-interacting FERM and PDZ domain-containing protein that regulates dendritic spine morphogenesis. It acts as a positive regulator of dendritic spine morphogenesis and density. It is required for the maintenance of excitatory synaptic transmission. It binds phosphatidylinositol 4,5-bisphosphate. This model corresponds to a conserved region in FRMPD1 and FRMPD4 that binds to tetratricopeptide (TPR) repeats present in the N-terminal domain of adaptor protein LGN. LGN plays a crucial role in mitotic spindle orientation and cell polarization via interaction with multiple targets including FRMPD1 and FRMPD4.

                           10        20        30
                   ....*....|....*....|....*....|....*..
gi 1696926926  902 LGLLAPLRETKSTNPASR-VMEMEPETMETKSVIDSR 937
Cdd:cd21928      1 LGEDAPLGLQASGDRSSYsLMEMEPETMETKSVTDSV 37

PDZ domain; PDZ domains are found in diverse signaling proteins.

                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*
gi 1696926926   58 VKIDKDTLLQDYGFHISEslpltvvaVTAGGSAH-GKLFPGDQILQMNNEPAEDLSWERAVDILREAEDSLSITV 131
Cdd:pfam00595   14 FSLKGGSDQGDPGIFVSE--------VLPGGAAEaGGLKVGDRILSINGQDVENMTHEEAVLALKGSGGKVTLTI 80

PDZ domain 1 of delphilin (L-delphilin isoform), and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 1 of delphilin (also known as glutamate receptor, ionotropic, delta 2-interacting protein 1, L-delphilin). Delphilin, a postsynaptic protein which is selectively expressed at cerebellar Purkinje cells, links the glutamate receptor delta 2 subunit (GluRdelta2) with the actin cytoskeleton and various signaling molecules. Two alternatively spliced isoforms of delphilin have been characterized: L-delphilin has two PDZ domains, PDZ1 and PDZ2, and S-delphilin has a single PDZ domain (PDZ2). These two isoforms are differently palmitoylated and may be involved in controlling GluRdelta2 signaling in Purkinje cells. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This delphilin-like family PDZ1 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 1696926926   67 QDYGFHISESLPLTVVAVTAGGSAH-GKLFPGDQILQMNNEPAEDLSWERAVDILREAEDS-LSITVV 132
Cdd:cd06743      9 EAFGFSIGGSGPCYILSVEEGSSAHaAGLQPGDQILELDGQDVSSLSCEAIIALARRCPSVpPSLGVV 76

PDZ domain 7 of glutamate receptor-interacting protein 1 (GRIP1) and GRIP2, and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain of alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor (AMPAR) binding proteins GRIP1 (ABP/GRIP2) and GRIP2, and related domains. GRIP1 and GRIP2 each have 7 PDZ domains. The interaction of GRIP1 and GRIP2 with GluA2/3 (AMPAR subunit) regulates AMPAR trafficking and synaptic targeting. GRIP1 has an essential role in regulating AMPAR trafficking during synaptic plasticity and learning and memory. GRIP1 and GRIP2 interact with a variety of other proteins associated with protein trafficking and internalization, for example GRIP1 also interacts with KIF5 (also known as kinesin 1), EphB receptors, scaffold protein liprin-alpha, and the rasGEF GRASP-1. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This GRIP family PDZ7 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1696926926   56 HTVKIDKDTLLQDYGFHISESL---PLTVVAVTAGGSA-HGKLFPGDQILQMNNEPAEDLSWERAVDILREAEDSLSITV 131
Cdd:cd06685      4 HKVTLYKDSDTEDFGFSVSDGLyekGVYVNAIRPGGPAdLSGLQPYDRILQVNHVRTRDFDCCLVVPLIAESGDKLELVV 83

                   ..
gi 1696926926  132 VR 133
Cdd:cd06685     84 SR 85

PDZ domain of Drosophila melanogaster PDZ and LIM domain protein Zasp52 (also known as Zasp), and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain of Drosophila melanogaster Zasp52 and related domains. Drosophila melanogaster Zasp52 (also known as Z band alternatively spliced PDZ-motif protein or Zasp) colocalizes with integrins at myotendinous junctions and with alpha-actinin at Z-disks and is required for muscle attachment as well as Z-disk assembly and maintenance. The Zasp52 actin-binding site includes the extended PDZ domain and the ZM region. The Zasp52-PDZ domain is required for myofibril assembly. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This Zasp52-like family domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*....
gi 1696926926   76 SLPLTVVAVTAGGSAHGK-LFPGDQILQMNNEPAEDLSWERAVDILREAEDSLSITVVR 133
Cdd:cd23068     24 GQPLSIQKVNPGSPADKAgLRRGDVILRINGTDTSNLTHKQAQDLIKRAGNDLQLTVQR 82

PDZ domain of densin, erbin, and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain of densin, erbin, and related domains. Densin (also known as leucine-rich repeat-containing protein 7, LRRC7, densin-180, protein LAP1) and erbin (also known as densin-180-like protein, Erbb2-interacting protein, protein LAP2) belong to the LAP (leucine-rich repeat and PDZ domain) family of scaffolding proteins that play roles in the maintenance of cell shape and apical-basal polarity. Densin and erbin are components of the excitatory postsynaptic compartment and are regulators of dendritic morphology and postsynaptic structure. The densin PDZ domain binds CaV1.3 alpha1 subunit, delta-catenin, and MAGUIN-1. Binding partners of the erbin PDZ domain include ErbB receptor tyrosine kinase ErbB2, HTLV-1 Tax1, Cav1.3 Ca2+channels, and constituents of the cadherin:catenin cell adhesion complex, in particular delta-catenin, p0071 and ARVCF. The erbin PDZ domain binds Smad3, a transductor of the TGFbeta pathway, possibly by a novel interface of binding. Erbin and two other LAP proteins (scribble and lano) redundantly regulate epithelial polarity and apical adhesion complex. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This densin and erbin-like family domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged as beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

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                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1696926926   57 TVKIDKDTLLqdyGFHIS------------ESLPLTVVAVTAGGSAHGKLFPGDQILQMNNEPAEDLSWERAVDILREAE 124
Cdd:cd06749      2 RVRIEKNPGL---GFSISggigsqgnpfrpDDDGIFVTKVQPDGPASKLLQPGDKILEVNGYDFVNIEHGQAVSLLKSFQ 78

                   ....*....
gi 1696926926  125 DSLSITVVR 133
Cdd:cd06749     79 NTVDLVVER 87

PDZ domain of sorting nexin-27 (SNX27), and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain of SNX27, and related domains. SNX27 is involved in retrograde transport from endosome to plasma membrane. The PDZ domain of SNX27 links cargo identification to retromer-mediated transport. SNX27 binds to the retromer complex (vacuolar protein sorting 26(VPS26)-VPS29-VPS35), via its PDZ domain binding to VPS26. The SNX27 PDZ domain also binds to cargo including the G-protein-coupled receptors (GPCRs): beta2-adrenergic receptor (beta2AR), beta1AR, parathyroid hormone receptor (PTHR), alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors (AMPARs), NMDA receptors, 5-hydroxytryptamine 4a receptors, frizzled receptors, and somatostatin receptor subtype 5 (SSTR5). Additional binding partners of the SNX27 PDZ domain include G protein-gated inwardly rectifying potassium (Kir3) channels, angiotensin-converting enzyme 2 (ACE2), and PTEN (phosphatase and tensin homolog deleted on chromosome 10); PTEN binding to SNX27 prevents SNX27's association with the retromer complex. SNX27 has been reported to be a host factor needed for efficient entry of an engineered SARS-CoV-2 variant, the spike protein of which contains a deletion at the S1/S2 subunit cleavage site; the PDZ domain of SNX27 binds angiotensin-converting enzyme 2 (ACE2), and may be involved in recycling ACE2 to the plasma membrane, thereby promoting viral entry. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This SNX27-like family domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

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gi 1696926926   78 PLT-VVAVTAGGSAH-GKLFPGDQILQMNNEPAEDLSWERAVDILREAEDSLSITVV 132
Cdd:cd23070     36 PLQhVSAVLEGGAADkAGVRKGDRILEVNGVNVEGATHKQVVDLIKSGGDELTLTVI 92

PDZ domain of protein Lin-7 and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain of Lin-7 (also known as LIN-7 or LIN7), and related domains. Lin-7 targets and organize protein complexes to epithelial and synaptic plasma membranes. There are three mammalian Lin-7 homologs: Lin-7A (protein lin-7 homolog A, also known as mammalian lin-seven protein 1 (MALS-1), vertebrate lin-7 homolog 1 (Veli-1), tax interaction protein 33); Lin-7B (also known as MALS-2, Veli-2); and Lin-7C (also known as MALS-3, Veli-3). Lin-7 is involved in localization of the Let-23 growth factor receptor to the basolateral membrane of epithelial cells, in tight junction localization of insulin receptor substrate p53 (IRSp53), in retaining gamma-aminobutyric (GABA) transporter (BGT-1) at the basolateral surface of epithelial cells, and in regulating recruitment of neurotransmitter receptors to the postsynaptic density (PSD). The Lin7 PDZ domain binds Let-23, BGT and beta-catenin, and NMDA (N-methyl-D-aspartate) receptor NR2B. Lin-7 also binds to the PDZ binding motif located in the C-terminal tail of Rhotekin, an effector protein for small GTPase Rho. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This Lin-7-like family domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                           10        20        30        40        50        60        70
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1696926926   67 QDYGFHI----SESLPLTVVAVTAGGSA--HGKLFPGDQILQMNNEPAEDLSWERAVDILREAEDSLSITV 131
Cdd:cd06796     12 EGLGFNVmggkEQNSPIYISRIIPGGVAdrHGGLKRGDQLLSVNGVSVEGEHHEKAVELLKAAQGSVKLVV 82

PDZ domain 5 of membrane-associated guanylate kinase inverted 1 (MAGI-1), MAGI-2, and MAGI-3, and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 5 of MAGI1, 2, 3 (MAGI is also known as Membrane-associated guanylate kinase, WW and PDZ domain-containing protein) and related domains. MAGI proteins have been implicated in the control of cell migration and invasion through altering the activity of phosphatase and tensin homolog (PTEN) and modulating Akt signaling. Four MAGI proteins have been identified (MAGI1-3 and MAGIX). MAGI1-3 have 6 PDZ domains and bind to the C-terminus of PTEN via their PDZ2 domain. MAGIX has a single PDZ domain that is related to MAGI1-3 PDZ domain 5, and belongs to this MAGI1,2,3-like family. Other binding partners for MAGI1 include JAM4, C-terminal tail of high risk HPV-18 E6, megalin, TRAF6, Kir4.1 (basolateral K+ channel subunit), and cadherin 23; for MAGI2, include DASM1, dendrin, axin, beta- and delta-catenin, neuroligin, hyperpolarization-activated cation channels, beta1-adrenergic receptors, NMDA receptor, and TARPs; and for MAGI3 includes LPA2. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This MAGI family PDZ5 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged as beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

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                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 1696926926   69 YGFHIS-----ESLPLTVVAVTAGGSAH--GKLFPGDQILQMNNEPAEDLSWERAVDILREAEDSLSITVVR 133
Cdd:cd06735     13 FGFSIRggreyNNMPLYVLRLAEDGPAQrdGRLRVGDQILEINGESTQGMTHAQAIELIRSGGSVVRLLLRR 84

PDZ domain 1 of human Ligand of Numb protein X 1 (LNX1) and LNX2, and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 1 of LNX1 (also known as PDZ domain-containing RING finger protein 2, PDZRN2) and LNX2 (also known as PDZ domain-containing RING finger protein 1, PDZRN1), and related domains. LNX1 and LNX2 are Ring (Really Interesting New Gene) finger and PDZ domain-containing E3 ubiquitin ligases that bind to the cell fate determinant protein NUMB and mediate its ubiquitination. LNX1 can ubiquitinate a number of other ligands including PPFIA1, KLHL11, KIF7 and ERC2. LNX1 and LNX2 each have four PDZ domains. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This LNX family PDZ1 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|.
gi 1696926926   73 ISESLPLTVVAVTaggsahGKLFPGDQILQMNNEPAEDLSWERAVDILREAEDSLSITVVR 133
Cdd:cd06677     34 IQEVYRDGVIARD------GRLLPGDQILEVNGVDISNVTHSQARSVLRQPCPVLRLTVLR 88

transcriptional regulator ICP4; Provisional

                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1696926926  555 KEEQPPGNSPTPEVARRGPSTCGASSTTDSAESEASDSANTESRGYRTSGSSESMDALE-EDDLDTCSSSRSTFFHFGSP 633
Cdd:PHA03307   119 PTPPPASPPPSPAPDLSEMLRPVGSPGPPPAASPPAAGASPAAVASDAASSRQAALPLSsPEETARAPSSPPAEPPPSTP 198

                           90       100       110       120       130       140       150       160
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1696926926  634 GLAESidsDSQEERSGIETSGFLCL--LDLAQRANPQCQKTEFSESAALETFGWAPE-------LSTVRLDPRLYEGSHA 704
Cdd:PHA03307   199 PAAAS---PRPPRRSSPISASASSPapAPGRSAADDAGASSSDSSSSESSGCGWGPEnecplprPAPITLPTRIWEASGW 275

                          170       180       190       200       210       220       230       240
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 1696926926  705 DYY-SLCSSVSPASYLSDSSESTASRQGGAPPAwgqqgwteAQPSSMLEPLALHPPLAFEDGSSDEEYYDAADklTPPGP 783
Cdd:PHA03307   276 NGPsSRPGPASSSSSPRERSPSPSPSSPGSGPA--------PSSPRASSSSSSSRESSSSSTSSSSESSRGAA--VSPGP 345

                          250       260       270       280
                   ....*....|....*....|....*....|....*....|....*.
gi 1696926926  784 PSG--PRDVSTAEPSATSLQNKASTSSPENSLPCGPDGRQPSRRGG 827
Cdd:PHA03307   346 SPSrsPSPSRPPPPADPSSPRKRPRPSRAPSSPAASAGRPTRRRAR 391

PDZ domain 3 of human discs large homolog 1 (Dlg1), Dlg2, and Dlg4, Drosophila disc large (Dlg), and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 3 of Drosophila Dlg1, human Dlg1, 2, and 4 and related domains. Dlg1 (also known as synapse-associated protein Dlg197; SAP-97), Dlg2 (also known as channel-associated protein of synapse-110; postsynaptic density protein 93, PSD-93), Dlg4 (also known as postsynaptic density protein 95, PSD-95; synapse-associated protein 90, SAP-90) each have 3 PDZ domains and belong to the membrane-associated guanylate kinase family. Dlg1 regulates antigen receptor signaling and cell polarity in lymphocytes, B-cell proliferation and antibody production, and TGFalpha bioavailability; its PDZ3 domain binds pro-TGFalpha, and its PDZ2 domain binds the TACE metalloprotease responsible for cleaving pro-TGFalpha to a soluble form. Dlg2 is involved in N-methyl-D-aspartate (NMDA) receptor signaling, regulating surface expression of NMDA receptors in dorsal horn neurons of the spinal cord; it interacts with NMDA receptor subunits and with Shaker-type K+ channel subunits to cluster into a channel complex. The Dlg4 PDZ1 domain binds NMDA receptors, and its PDZ2 domain binds neuronal nitric oxide synthase (nNOS), forming a complex in neurons. The Drosophila Scribble complex (Scribble, Dlg, and lethal giant larvae) plays a role in apico-basal cell polarity, and in other forms of polarity, including regulation of the actin cytoskeleton, cell signaling and vesicular trafficking, and in tumor development; postsynaptic targeting of Drosophila DLG requires interactions mediated by the first two PDZ domains. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This Dlg-like family PDZ3 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

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gi 1696926926   70 GFHI---SESLPLTVVAVTAGGSA--HGKLFPGDQILQMNNEPAEDLSWERAVDILREAEDSLSITVV 132
Cdd:cd06795     15 GFNIvggEDGEGIFISFILAGGPAdlSGELRRGDQILSVNGVDLRNATHEQAAAALKNAGQTVTIIAQ 82

LGN tetratricopeptide repeat-binding domain found in FERM and PDZ domain-containing protein 4; FRMPD4, also called PDZ domain-containing protein 10 (PDZD10), PDZK10, or PSD-95-interacting regulator of spine morphogenesis (Preso), is a novel PSD-95-interacting FERM and PDZ domain protein that regulates dendritic spine morphogenesis. It acts as a positive regulator of dendritic spine morphogenesis and density. It is required for the maintenance of excitatory synaptic transmission. It binds phosphatidylinositol 4,5-bisphosphate. FRMPD4 contains WW, PDZ and FERM domains in the N-terminal region. This model corresponds to a conserved region in the C-terminal region of FRMPD4 that binds to tetratricopeptide (TPR) repeats present in the N-terminal domain of adaptor protein LGN. LGN plays a crucial role in mitotic spindle orientation and cell polarization via interaction with multiple targets including FRMPD4.

                           10
                   ....*....|....*
gi 1696926926  921 MEMEPETMETKSVID 935
Cdd:cd21943     21 IEMEPETMETKSLTD 35

PDZ domain 12 of multi-PDZ-domain protein 1 (MUPP1), PDZ domain 10 of protein-associated tight junction (PATJ, and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 12 of MUPP1, PDZ domain 10 of PATJ, and related domains. MUPP1 and PATJ serve as scaffolding proteins linking different proteins and protein complexes involved in the organization of tight junctions and epithelial polarity. MUPP1 contains an L27 (Lin-2 and Lin-7 binding) domain and 13 PDZ domains. PATJ (also known as INAD-like) contains an L27 domain and ten PDZ domains. MUPP1 and PATJ share several binding partners, including junctional adhesion molecules (JAM), zonula occludens (ZO)-3, Pals1 (protein associated with Lin-7), Par (partitioning defective)-6 proteins, and nectins (adherence junction adhesion molecules). PATJ lacks 3 PDZ domains seen in MUPP1: PDZ6, 9, and 13; consequently, MUPP1 PDZ7 and 8 align with PATJ PDZ6 and 7; and MUPP1 PDZ domains 10-12 align with PATJ PDZ domains 8-10. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This MUPP1-like PDZ12 family domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F

                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*..
gi 1696926926   78 PLTVVAVTAGGSA--HGKLFPGDQILQMNNEPAEDLSWERAVDILREAEDSLSITVV 132
Cdd:cd06675     29 PVFIAMIQPNGVAaqTGKLKVGDRIVSINGQSTDGLTHSEAVNLLKNASGTIILQVV 85

PDZ domain 10 of multi-PDZ-domain protein 1 (MUPP1), domain 8 of PATJ (protein-associated tight junction) and similar domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 10 of MUPP1, PDZ domain 8 of PATJ, and related domains. MUPP1 and PATJ serve as scaffolding proteins linking different proteins and protein complexes involved in the organization of tight junctions and epithelial polarity. MUPP1 contains an L27 (Lin-2 and Lin-7 binding) domain and 13 PDZ domains. PATJ (also known as INAD-like) contains an L27 domain and ten PDZ domains. MUPP1 and PATJ share several binding partners, including junctional adhesion molecules (JAM), zonula occludens (ZO)-3, Pals1 (protein associated with Lin-7), Par (partitioning defective)-6 proteins, and nectins (adherence junction adhesion molecules). PATJ lacks 3 PDZ domains seen in MUPP1: PDZ6, 9, and 13; consequently, MUPP1 PDZ7 and 8 align with PATJ PDZ6 and 7; and MUPP1 PDZ domains 10-12 align with PATJ PDZ domains 8-10. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This MUPP1-like family PDZ10 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                           10        20        30        40        50
                   ....*....|....*....|....*....|....*....|....*....|....*
gi 1696926926   81 VVAVTAGGSAH--GKLFPGDQILQMNNEPAEDLSWERAVDILREAEDSLSITVVR 133
Cdd:cd06673     32 IHEVYEDGAAAkdGRLWAGDQILEVNGEDLRKATHDEAINVLRQTPQKVRLLVYR 86

PDZ domains of the Na+/H+ exchange regulatory cofactor (NHERF) family (NHERF1-4), and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain of the Na+/H+ exchange regulatory cofactor (NHERF) family of multi-PDZ-domain-containing scaffolding proteins (NHERF1-4), and related domains. The NHERF family includes NHERF1 (also known as EBP50), NHERF2 (also known as E3KARP; TKA-1; SIP-1), NHERF3 (also known as CAP70; CLAMP; Napi-Cap-1; PDZD1) and NHERF4 (also known as IKEPP; PDZK2; Napi-Cap-2). NHERF1 and NHERF2 have tandem PDZ domains (PDZ1-2); NHERF3 and NHERF4 have four PDZ domains (PDZ1-4). NHERFs are involved in the regulation of multiple receptors or transporters, such as type II sodium-phosphate cotransporter (Npt2a), purinergic P2Y1 receptor P2Y1R, the beta2-adrenergic receptor (beta2-AR), parathyroid hormone receptor type 1 (PTHR), the lysophosphatidic acid receptors (LPARs), sodium-hydrogen exchanger 3 (NHE3), and cystic fibrosis transmembrane conductance regulator (CFTR). NHERF-PDZ1 domain interaction partners include Npt2a, purinergic P2Y1 receptor, beta2-AR, CFTR, PTHR, NH3, G-protein-coupled receptor kinase 6 (GRK6A), platelet-derived growth factor receptor (PDGFR), B1 subunit of the H+ATPase, cholesterol, receptor for activated C-kinase RACK1, aquaporin 9, among others. The NHERF PDZ2 domain interacts with fewer proteins: NHERF1 PDZ2 binds Npt2a, PTHR, beta-catenin, aquaporin 9, and RACK1; NHERF2 PDZ2 binds LPA2, P2Y1R, and NHE3, cGMP-dependent protein kinase type II (cGKII). NHERF4 PDZ1 and PDZ4 bind the epithelial Ca(2+) channels TRPV5 and TRPV6. NHERF2/NHERF3 heterodimerization is mediated by PDZ domains of NHERF2 and the C-terminal PDZ domain recognition motif of NHERF3. NHERF4 regulates several transporters mediating influx of xenobiotics and nutrients in the small intestine. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This NHERF-like family domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

                           10        20        30        40        50        60
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*...
gi 1696926926   69 YGFHIS--ESLPLTVV-AVTAGGSAH-GKLFPGDQILQMNNEPAEDLSWERAVDILREAEDSLSITVV 132
Cdd:cd06768     12 YGFNLHaeKGRPGHFIrEVDPGSPAErAGLKDGDRLVEVNGENVEGESHEQVVEKIKASGNQVTLLVV 79

PDZ domain 1 of protein tyrosine phosphatase non-receptor type 13 (PTPN13),FERM and PDZ domain-containing protein 2 (FRMPD2), and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 1 of PTPN13 [also known as Fas-associated protein-tyrosine phosphatase 1 (FAP-1), protein-tyrosine phosphatase 1E (PTP-E1), and protein-tyrosine phosphatase (PTPL1)], FRMPD2 (also known as PDZ domain-containing protein 4; PDZ domain-containing protein 5C), and related domains. PTPN13 regulates negative apoptotic signaling and mediates phosphoinositide 3-kinase (PI3K) signaling. PTPN13 has five PDZ domains. Proteins known to interact with PTPN13 PDZ domains include: PLEKHA1 and PLEKHA2 via PTPN13-PDZ domain 1, Fas receptor and thyroid receptor-interacting protein 6 via PTPN13-PDZ domain 2, nerve growth factor receptor and protein kinase N2 via PTPN13-PDZ domain 3, PDZ and LIM domain 4 (PDLIM4) via PTPN13-PDZ domains 2 and 4, and brain calpain-2 via PTPN13-PDZ domains 3, 4 and 5. Calpain-2-mediated PTPN13 fragments may be involved in abnormal tau aggregation and increased risk for Alzheimer's disease. FRMPD2 is localized in the basolateral membranes of polarized epithelial cells and is associated with tight junction formation and immune response; it contains 3 PDZ domains. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This PTPN13 family PDZ1 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

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gi 1696926926   58 VKIDKDtllQDYGFHI-------SESLPLT--VVAVTAGGSAH--GKLFPGDQILQMNNEPAEDLSWERAVDILREAEDS 126
Cdd:cd06694      5 VTLKKD---PQKGLGFtivggenSGSLDLGifVKSIIPGGPADkdGRIKPGDRIIAINGQSLEGKTHHAAVEIIQNAPDK 81

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gi 1696926926  127 LSITV 131
Cdd:cd06694     82 VELII 86

PDZ domain of SH3 and multiple ankyrin repeat domains protein 1 (SHANK1), SHANK2, SHANK3, and related domains; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain of SHANK1, SHANK2, SHANK3, and related domains. SHANK family proteins, SHANK1 (also known as somatostatin receptor-interacting protein, SSTR-interacting protein, SSTRIP), SHANK2 (also known as cortactin-binding protein 1, proline-rich synapse-associated protein 1), and SHANK3 (proline-rich synapse-associated protein 2) are synaptic scaffolding proteins which are highly enriched in the post-synaptic densities of excitatory synapses. They have been implicated in synaptic transmission, synapse formation, synaptic plasticity, and cytoskeletal remodeling, and are regulators of Cav1 calcium current and CREB target expression. Many protein ligands have been identified for the Shank PDZ domain, such as GKAP (also known as SAPAP), betaPIX (a guanine nucleotide exchange factor used by Rho GTPase family members Rac1 and Cdc42), alpha-latrotoxin, neuroligin, group I metabotropic glutamate receptors (mGluRs), and L-type calcium channels. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This SHANK-like family domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged as beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta- strand F.

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gi 1696926926   84 VTAGGSAH--GkLFPGDQILQMNNEPAEDLSWERAVDILREAEDSLSITVVR 133
Cdd:cd06746     49 VDPGGVADkaG-LKKGDFLLEINGEDVVKASHEQVVNLIRQSGNTLVLKVVT 99

PDZ domain 2 of Zonula Occludens-1 (ZO-1), ZO-2 and ZO-3, and related domains; form domain-swapping dimers; PDZ (PSD-95 (Postsynaptic density protein 95), Dlg (Discs large protein), and ZO-1 (Zonula occludens-1)) domain 2 of ZO-1, -2, -3 and related domains. Zonula occludens proteins (ZO-1, ZO-2, ZO-3) are multi-PDZ domain proteins involved in the maintenance and biogenesis of multi-protein networks at the cytoplasmic surface of intercellular contacts in epithelial and endothelial cells. They have three N-terminal PDZ domains, PDZ1-3, followed by a Src homology-3 (SH3) domain and a guanylate kinase (GuK)-like domain. Among protein-protein interactions for all ZO proteins is the binding of the first PDZ domain (PDZ1) to the C-termini of claudins , and the homo- and hetero-dimerization of ZO-proteins via their second PDZ domain (PDZ2), which takes place by symmetrical domain swapping of the first two beta-strands of PDZ2. At the cell level, ZO-1 and ZO-2 are involved in polarity maintenance, gene transcription, cell proliferation, and tumor cell metastasis. PDZ domains usually bind in a sequence-specific manner to short peptide sequences located at the C-terminal end of their partner proteins (known as PDZ binding motifs). The PDZ superfamily includes canonical PDZ domains as well as those with circular permutations and domain swapping mediated by beta-strands. This ZO family PDZ2 domain is a canonical PDZ domain containing six beta-strands A-F and two alpha-helices (alpha-helix 1 and 2), arranged in the order: beta-strands A, B, C, alpha-helix 1, beta-strands D, E, alpha-helix 2 and beta-strand F.

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gi 1696926926   92 GKLFPGDQILQMNNEPAEDLSWERAVDILREAEDSLSITVVR 133
Cdd:cd06728     37 GNLQEGDIILKINGTPVENLSLSEAKKLIEKSKDKLQLVVLR 78