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Conserved domains on  [gi|2217368322|ref|XP_047276733|]
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syntaxin-1A isoform X1 [Homo sapiens]

Protein Classification

SynN and SNARE_syntaxin1-like domain-containing protein( domain architecture ID 10075343)

SynN and SNARE_syntaxin1-like domain-containing protein

Graphical summary

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List of domain hits

Name Accession Description Interval E-value
SynN cd00179
Syntaxin N-terminus domain; syntaxins are nervous system-specific proteins implicated in the ...
30-181 4.78e-60

Syntaxin N-terminus domain; syntaxins are nervous system-specific proteins implicated in the docking of synaptic vesicles with the presynaptic plasma membrane; they are a family of receptors for intracellular transport vesicles; each target membrane may be identified by a specific member of the syntaxin family; syntaxins contain a moderately well conserved amino-terminal domain, called Habc, whose structure is an antiparallel three-helix bundle; a linker of about 30 amino acids connects this to the carboxy-terminal region, designated H3 (t_SNARE), of the syntaxin cytoplasmic domain; the highly conserved H3 region forms a single, long alpha-helix when it is part of the core SNARE complex and anchors the protein on the cytoplasmic surface of cellular membranes; H3 is not included in defining this domain


:

Pssm-ID: 238105 [Multi-domain]  Cd Length: 151  Bit Score: 187.49  E-value: 4.78e-60
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2217368322  30 MDEFFEQVEEIRGFIDKIAENVEEVKRKHSAILASPNPDEKTKEELEELMSDIKKTANKVRSKLKSIEQSIEQEEGLNrS 109
Cdd:cd00179     1 LEEFFEEVEEIRGNIDKISEDVEELQKLHSQLLTAPDADPELKQELESLVQEIKKLAKEIKGKLKELEESNEQNEALN-G 79
                          90       100       110       120       130       140       150
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 2217368322 110 SADLRIRKTQHSTLSRKFVEVMSEYNATQSDYRERCKGRIQRQLEITGRTTTSEELEDMLESGNPAIFASGI 181
Cdd:cd00179    80 SSVDRIRKTQHSGLSKKFVEVMTEFNKAQRKYRERYKERIQRQLEITGGEATDEELEDMLESGNSEIFTSQI 151
SNARE_syntaxin1-like cd15848
SNARE motif of syntaxin 1 and related proteins; SNARE (soluble N-ethylmaleimide-sensitive ...
191-226 6.01e-19

SNARE motif of syntaxin 1 and related proteins; SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins consist of coiled-coil helices (called SNARE motifs) which mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complex mediates membrane fusion, important for trafficking of newly synthesized proteins, recycling of pre-existing proteins and organelle formation. SNARE proteins are classified into four groups, Qa-, Qb-, Qc- and R-SNAREs, depending on whether the residue in the hydrophilic center layer of the four-helical bundle is a glutamine (Q) or arginine (R). Qa-, as well as Qb- and Qc-SNAREs, are localized to target organelle membranes, while R-SNARE is localized to vesicle membranes. They form unique complexes consisting of one member of each subgroup, that mediate fusion between a specific type of vesicles and their target organelle. Their SNARE motifs form twisted and parallel heterotetrameric helix bundles. This subgroup of the Qa SNAREs includes syntaxin 1, syntaxin 11, syntaxin 19, syntaxin 2, syntaxin 3, syntaxin 4 and related proteins.


:

Pssm-ID: 277201  Cd Length: 63  Bit Score: 78.35  E-value: 6.01e-19
                          10        20        30
                  ....*....|....*....|....*....|....*.
gi 2217368322 191 ALSEIETRHSEIIKLENSIRELHDMFMDMAMLVESQ 226
Cdd:cd15848     1 ALADIEERHQDILKLEKSIRELHQMFLDMAVLVESQ 36
 
Name Accession Description Interval E-value
SynN cd00179
Syntaxin N-terminus domain; syntaxins are nervous system-specific proteins implicated in the ...
30-181 4.78e-60

Syntaxin N-terminus domain; syntaxins are nervous system-specific proteins implicated in the docking of synaptic vesicles with the presynaptic plasma membrane; they are a family of receptors for intracellular transport vesicles; each target membrane may be identified by a specific member of the syntaxin family; syntaxins contain a moderately well conserved amino-terminal domain, called Habc, whose structure is an antiparallel three-helix bundle; a linker of about 30 amino acids connects this to the carboxy-terminal region, designated H3 (t_SNARE), of the syntaxin cytoplasmic domain; the highly conserved H3 region forms a single, long alpha-helix when it is part of the core SNARE complex and anchors the protein on the cytoplasmic surface of cellular membranes; H3 is not included in defining this domain


Pssm-ID: 238105 [Multi-domain]  Cd Length: 151  Bit Score: 187.49  E-value: 4.78e-60
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2217368322  30 MDEFFEQVEEIRGFIDKIAENVEEVKRKHSAILASPNPDEKTKEELEELMSDIKKTANKVRSKLKSIEQSIEQEEGLNrS 109
Cdd:cd00179     1 LEEFFEEVEEIRGNIDKISEDVEELQKLHSQLLTAPDADPELKQELESLVQEIKKLAKEIKGKLKELEESNEQNEALN-G 79
                          90       100       110       120       130       140       150
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 2217368322 110 SADLRIRKTQHSTLSRKFVEVMSEYNATQSDYRERCKGRIQRQLEITGRTTTSEELEDMLESGNPAIFASGI 181
Cdd:cd00179    80 SSVDRIRKTQHSGLSKKFVEVMTEFNKAQRKYRERYKERIQRQLEITGGEATDEELEDMLESGNSEIFTSQI 151
Syntaxin pfam00804
Syntaxin; Syntaxins are the prototype family of SNARE proteins. They usually consist of three ...
32-226 2.88e-57

Syntaxin; Syntaxins are the prototype family of SNARE proteins. They usually consist of three main regions - a C-terminal transmembrane region, a central SNARE domain which is characteriztic of and conserved in all syntaxins (pfam05739), and an N-terminal domain that is featured in this entry. This domain varies between syntaxin isoforms; in syntaxin 1A it is found as three alpha-helices with a left-handed twist. It may fold back on the SNARE domain to allow the molecule to adopt a 'closed' configuration that prevents formation of the core fusion complex - it thus has an auto-inhibitory role. The function of syntaxins is determined by their localization. They are involved in neuronal exocytosis, ER-Golgi transport and Golgi-endosome transport, for example. They also interact with other proteins as well as those involved in SNARE complexes. These include vesicle coat proteins, Rab GTPases, and tethering factors.


Pssm-ID: 459942 [Multi-domain]  Cd Length: 203  Bit Score: 182.38  E-value: 2.88e-57
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2217368322  32 EFFEQVEEIRGFIDKIAENVEEVKRKH--SAILASPNPDEKTKEELEELMSDIKKTANKVRSKLKSIEQSI---EQEEGL 106
Cdd:pfam00804   1 DFFKEVQEIKEEIEKIRLLVKKLQKQNeeSKLLTSARRMSVIKRRMNSIARDIKKRAESIKRRLEALDKSNaenEKKPGC 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2217368322 107 NRSSADLRIRKTQHSTLSRKFVEVMSEYNATQSDYRERCKGRIQRQLEI-TGRTTTSEELEDMLESGNPAIFASGII-MD 184
Cdd:pfam00804  81 GPGSAVDRIRRSQTAALRKKLKEVMAEYNELRERIREEYKEVIQRQYETvTGKEVSEEEIEEMIETGSESVFQKAILeQG 160
                         170       180       190       200
                  ....*....|....*....|....*....|....*....|..
gi 2217368322 185 SSISKQALSEIETRHSEIIKLENSIRELHDMFMDMAMLVESQ 226
Cdd:pfam00804 161 RGQARSALSEIEERHKELKELESSLKELHQIFLDMAVLVEAQ 202
SynN smart00503
Syntaxin N-terminal domain; Three-helix domain that (in Sso1p) slows the rate of its reaction ...
29-146 3.58e-29

Syntaxin N-terminal domain; Three-helix domain that (in Sso1p) slows the rate of its reaction with the SNAP-25 homologue Sec9p


Pssm-ID: 214699 [Multi-domain]  Cd Length: 117  Bit Score: 107.05  E-value: 3.58e-29
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2217368322   29 FMDEFFEQVEEIRGFIDKIAENVEEVKRKHSAILASPNPDEKTKEELEELMSDIKKTANKVRSKLKSIEQSIEQEEglNR 108
Cdd:smart00503   2 NLDEFFEKVEEIRANIQKISQNVAELQKLHEELLTPPDADKELREKLERLIDDIKRLAKEIRAKLKELEKENLENR--AS 79
                           90       100       110
                   ....*....|....*....|....*....|....*...
gi 2217368322  109 SSADLRIRKTQHSTLSRKFVEVMSEYNATQSDYRERCK 146
Cdd:smart00503  80 GSASDRTRKAQTEKLRKKFKEVMNEFQRLQRKYREREK 117
SNARE_syntaxin1-like cd15848
SNARE motif of syntaxin 1 and related proteins; SNARE (soluble N-ethylmaleimide-sensitive ...
191-226 6.01e-19

SNARE motif of syntaxin 1 and related proteins; SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins consist of coiled-coil helices (called SNARE motifs) which mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complex mediates membrane fusion, important for trafficking of newly synthesized proteins, recycling of pre-existing proteins and organelle formation. SNARE proteins are classified into four groups, Qa-, Qb-, Qc- and R-SNAREs, depending on whether the residue in the hydrophilic center layer of the four-helical bundle is a glutamine (Q) or arginine (R). Qa-, as well as Qb- and Qc-SNAREs, are localized to target organelle membranes, while R-SNARE is localized to vesicle membranes. They form unique complexes consisting of one member of each subgroup, that mediate fusion between a specific type of vesicles and their target organelle. Their SNARE motifs form twisted and parallel heterotetrameric helix bundles. This subgroup of the Qa SNAREs includes syntaxin 1, syntaxin 11, syntaxin 19, syntaxin 2, syntaxin 3, syntaxin 4 and related proteins.


Pssm-ID: 277201  Cd Length: 63  Bit Score: 78.35  E-value: 6.01e-19
                          10        20        30
                  ....*....|....*....|....*....|....*.
gi 2217368322 191 ALSEIETRHSEIIKLENSIRELHDMFMDMAMLVESQ 226
Cdd:cd15848     1 ALADIEERHQDILKLEKSIRELHQMFLDMAVLVESQ 36
COG5074 COG5074
t-SNARE complex subunit, syntaxin [Intracellular trafficking, secretion, and vesicular ...
30-226 1.15e-13

t-SNARE complex subunit, syntaxin [Intracellular trafficking, secretion, and vesicular transport];


Pssm-ID: 227406 [Multi-domain]  Cd Length: 280  Bit Score: 69.53  E-value: 1.15e-13
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2217368322  30 MDEFFE-QVEEIRGFIDKIAENVEEVKRKHSAILASPnpDEKTKEELEELMSDIKKTANKVRSKLKSIEQSIEqeeglnR 108
Cdd:COG5074    19 NGVTFMnKILSINKNLSVYEKEINQIDNLHKDLLTEV--FEEQSRKLRRSLDNFSSQTTDLQRNLKKDIKSAE------R 90
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2217368322 109 SSADLRIRKTQHSTLSRKFVEVMSEYNATQSDYRERCKGRIQRQLEITGRTTTSEELEDMLESGNPAIFASGIIMDSSIS 188
Cdd:COG5074    91 DGIHLANKQAQAENVRQKFLKLIQDYRIIDSNYREEEKEQARRQYIIAQPEATEDEVEAAINDVNGQQVFSQALLNANRR 170
                         170       180       190       200
                  ....*....|....*....|....*....|....*....|.
gi 2217368322 189 ---KQALSEIETRHSEIIKLENSIRELHDMFMDMAMLVESQ 226
Cdd:COG5074   171 geaKTALAEVQARHQEIKKIEKTMAELTQLFNDMEELVIEQ 211
t_SNARE smart00397
Helical region found in SNAREs; All alpha-helical motifs that form twisted and parallel ...
189-226 1.08e-07

Helical region found in SNAREs; All alpha-helical motifs that form twisted and parallel four-helix bundles in target soluble N-ethylmaleimide-sensitive factor (NSF) attachment protein (SNAP) receptor proteins. This motif found in "Q-SNAREs".


Pssm-ID: 197699 [Multi-domain]  Cd Length: 66  Bit Score: 47.96  E-value: 1.08e-07
                           10        20        30
                   ....*....|....*....|....*....|....*...
gi 2217368322  189 KQALSEIETRHSEIIKLENSIRELHDMFMDMAMLVESQ 226
Cdd:smart00397   1 QQALAREEERDEELEQLEKSIQELKQIFLDMGTELEEQ 38
 
Name Accession Description Interval E-value
SynN cd00179
Syntaxin N-terminus domain; syntaxins are nervous system-specific proteins implicated in the ...
30-181 4.78e-60

Syntaxin N-terminus domain; syntaxins are nervous system-specific proteins implicated in the docking of synaptic vesicles with the presynaptic plasma membrane; they are a family of receptors for intracellular transport vesicles; each target membrane may be identified by a specific member of the syntaxin family; syntaxins contain a moderately well conserved amino-terminal domain, called Habc, whose structure is an antiparallel three-helix bundle; a linker of about 30 amino acids connects this to the carboxy-terminal region, designated H3 (t_SNARE), of the syntaxin cytoplasmic domain; the highly conserved H3 region forms a single, long alpha-helix when it is part of the core SNARE complex and anchors the protein on the cytoplasmic surface of cellular membranes; H3 is not included in defining this domain


Pssm-ID: 238105 [Multi-domain]  Cd Length: 151  Bit Score: 187.49  E-value: 4.78e-60
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2217368322  30 MDEFFEQVEEIRGFIDKIAENVEEVKRKHSAILASPNPDEKTKEELEELMSDIKKTANKVRSKLKSIEQSIEQEEGLNrS 109
Cdd:cd00179     1 LEEFFEEVEEIRGNIDKISEDVEELQKLHSQLLTAPDADPELKQELESLVQEIKKLAKEIKGKLKELEESNEQNEALN-G 79
                          90       100       110       120       130       140       150
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|..
gi 2217368322 110 SADLRIRKTQHSTLSRKFVEVMSEYNATQSDYRERCKGRIQRQLEITGRTTTSEELEDMLESGNPAIFASGI 181
Cdd:cd00179    80 SSVDRIRKTQHSGLSKKFVEVMTEFNKAQRKYRERYKERIQRQLEITGGEATDEELEDMLESGNSEIFTSQI 151
Syntaxin pfam00804
Syntaxin; Syntaxins are the prototype family of SNARE proteins. They usually consist of three ...
32-226 2.88e-57

Syntaxin; Syntaxins are the prototype family of SNARE proteins. They usually consist of three main regions - a C-terminal transmembrane region, a central SNARE domain which is characteriztic of and conserved in all syntaxins (pfam05739), and an N-terminal domain that is featured in this entry. This domain varies between syntaxin isoforms; in syntaxin 1A it is found as three alpha-helices with a left-handed twist. It may fold back on the SNARE domain to allow the molecule to adopt a 'closed' configuration that prevents formation of the core fusion complex - it thus has an auto-inhibitory role. The function of syntaxins is determined by their localization. They are involved in neuronal exocytosis, ER-Golgi transport and Golgi-endosome transport, for example. They also interact with other proteins as well as those involved in SNARE complexes. These include vesicle coat proteins, Rab GTPases, and tethering factors.


Pssm-ID: 459942 [Multi-domain]  Cd Length: 203  Bit Score: 182.38  E-value: 2.88e-57
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2217368322  32 EFFEQVEEIRGFIDKIAENVEEVKRKH--SAILASPNPDEKTKEELEELMSDIKKTANKVRSKLKSIEQSI---EQEEGL 106
Cdd:pfam00804   1 DFFKEVQEIKEEIEKIRLLVKKLQKQNeeSKLLTSARRMSVIKRRMNSIARDIKKRAESIKRRLEALDKSNaenEKKPGC 80
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2217368322 107 NRSSADLRIRKTQHSTLSRKFVEVMSEYNATQSDYRERCKGRIQRQLEI-TGRTTTSEELEDMLESGNPAIFASGII-MD 184
Cdd:pfam00804  81 GPGSAVDRIRRSQTAALRKKLKEVMAEYNELRERIREEYKEVIQRQYETvTGKEVSEEEIEEMIETGSESVFQKAILeQG 160
                         170       180       190       200
                  ....*....|....*....|....*....|....*....|..
gi 2217368322 185 SSISKQALSEIETRHSEIIKLENSIRELHDMFMDMAMLVESQ 226
Cdd:pfam00804 161 RGQARSALSEIEERHKELKELESSLKELHQIFLDMAVLVEAQ 202
SynN smart00503
Syntaxin N-terminal domain; Three-helix domain that (in Sso1p) slows the rate of its reaction ...
29-146 3.58e-29

Syntaxin N-terminal domain; Three-helix domain that (in Sso1p) slows the rate of its reaction with the SNAP-25 homologue Sec9p


Pssm-ID: 214699 [Multi-domain]  Cd Length: 117  Bit Score: 107.05  E-value: 3.58e-29
                           10        20        30        40        50        60        70        80
                   ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2217368322   29 FMDEFFEQVEEIRGFIDKIAENVEEVKRKHSAILASPNPDEKTKEELEELMSDIKKTANKVRSKLKSIEQSIEQEEglNR 108
Cdd:smart00503   2 NLDEFFEKVEEIRANIQKISQNVAELQKLHEELLTPPDADKELREKLERLIDDIKRLAKEIRAKLKELEKENLENR--AS 79
                           90       100       110
                   ....*....|....*....|....*....|....*...
gi 2217368322  109 SSADLRIRKTQHSTLSRKFVEVMSEYNATQSDYRERCK 146
Cdd:smart00503  80 GSASDRTRKAQTEKLRKKFKEVMNEFQRLQRKYREREK 117
SNARE_syntaxin1-like cd15848
SNARE motif of syntaxin 1 and related proteins; SNARE (soluble N-ethylmaleimide-sensitive ...
191-226 6.01e-19

SNARE motif of syntaxin 1 and related proteins; SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins consist of coiled-coil helices (called SNARE motifs) which mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complex mediates membrane fusion, important for trafficking of newly synthesized proteins, recycling of pre-existing proteins and organelle formation. SNARE proteins are classified into four groups, Qa-, Qb-, Qc- and R-SNAREs, depending on whether the residue in the hydrophilic center layer of the four-helical bundle is a glutamine (Q) or arginine (R). Qa-, as well as Qb- and Qc-SNAREs, are localized to target organelle membranes, while R-SNARE is localized to vesicle membranes. They form unique complexes consisting of one member of each subgroup, that mediate fusion between a specific type of vesicles and their target organelle. Their SNARE motifs form twisted and parallel heterotetrameric helix bundles. This subgroup of the Qa SNAREs includes syntaxin 1, syntaxin 11, syntaxin 19, syntaxin 2, syntaxin 3, syntaxin 4 and related proteins.


Pssm-ID: 277201  Cd Length: 63  Bit Score: 78.35  E-value: 6.01e-19
                          10        20        30
                  ....*....|....*....|....*....|....*.
gi 2217368322 191 ALSEIETRHSEIIKLENSIRELHDMFMDMAMLVESQ 226
Cdd:cd15848     1 ALADIEERHQDILKLEKSIRELHQMFLDMAVLVESQ 36
SNARE_syntaxin1 cd15880
SNARE motif of syntaxin 1; Syntaxin-1 belongs to the Qa subgroup of SNAREs and interacts with ...
191-226 5.76e-16

SNARE motif of syntaxin 1; Syntaxin-1 belongs to the Qa subgroup of SNAREs and interacts with SNAP-25 (Qb/Qc) and the R-SNARE VAMP2 (also called synaptobrevin-2). The complex plays a role in exocytosis of synaptic vesicles. SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins, which consist of coiled-coil helices (called SNARE motifs) that mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complexes mediate membrane fusion, important for trafficking of newly synthesized proteins, recycling of pre-existing proteins and organelle formation. SNARE proteins are classified into four groups, Qa-, Qb-, Qc- and R-SNAREs, depending on whether the residue in the hydrophilic center layer of the four-helical bundle is a glutamine (Q) or arginine (R). Qa-, as well as Qb- and Qc-SNAREs, are localized to target organelle membranes, while R-SNARE is localized to vesicle membranes. They form unique complexes consisting of one member of each subgroup, that mediate fusion between a specific type of vesicles and their target organelle.


Pssm-ID: 277233  Cd Length: 69  Bit Score: 70.62  E-value: 5.76e-16
                          10        20        30
                  ....*....|....*....|....*....|....*.
gi 2217368322 191 ALSEIETRHSEIIKLENSIRELHDMFMDMAMLVESQ 226
Cdd:cd15880     1 ALSEIEARHNDIIKLENSIRELHDMFMDMAMLVESQ 36
SNARE_syntaxin2 cd15882
SNARE motif of syntaxin 2; Syntaxin 2 (STX2), also known as epimorphin (EPM or EPIM), may ...
191-226 2.79e-14

SNARE motif of syntaxin 2; Syntaxin 2 (STX2), also known as epimorphin (EPM or EPIM), may interact with SNAP-23 (Qb/c) and genetic varioations are associated with type 1 von Willebrand disease (VWD). Syntaxin 2 is a member of the Qa subgroup of SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins, which consist of coiled-coil helices (called SNARE motifs) that mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complexes mediate membrane fusion, important for trafficking of newly synthesized proteins, recycling of pre-existing proteins and organelle formation. SNARE proteins are classified into four groups, Qa-, Qb-, Qc- and R-SNAREs, depending on whether the residue in the hydrophilic center layer of the four-helical bundle is a glutamine (Q) or arginine (R). Qa-, as well as Qb- and Qc-SNAREs, are localized to target organelle membranes, while R-SNARE is localized to vesicle membranes. They form unique complexes consisting of one member of each subgroup, that mediate fusion between a specific type of vesicles and their target organelle.


Pssm-ID: 277235  Cd Length: 69  Bit Score: 66.22  E-value: 2.79e-14
                          10        20        30
                  ....*....|....*....|....*....|....*.
gi 2217368322 191 ALSEIETRHSEIIKLENSIRELHDMFMDMAMLVESQ 226
Cdd:cd15882     1 ALNEIESRHKDIMKLESSIRELHDMFVDMAMLVETQ 36
SNARE_syntaxin3 cd15881
SNARE motif of syntaxin 3; Syntaxin 3 (STX3) has been shown to form a complex with VAMP8 ...
191-226 5.16e-14

SNARE motif of syntaxin 3; Syntaxin 3 (STX3) has been shown to form a complex with VAMP8 (R-SNARE) and SNAP-23 (Qb/c) in mast cells. Mutations have been implicated in human microvillus inclusion disease (MVID), a disorder of the differentiation of intestinal epithelium. Syntaxin 3 is a member of the Qa subgroup of SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins, which consist of coiled-coil helices (called SNARE motifs) that mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complexes mediate membrane fusion, important for trafficking of newly synthesized proteins, recycling of pre-existing proteins and organelle formation. SNARE proteins are classified into four groups, Qa-, Qb-, Qc- and R-SNAREs, depending on whether the residue in the hydrophilic center layer of the four-helical bundle is a glutamine (Q) or arginine (R). Qa-, as well as Qb- and Qc-SNAREs, are localized to target organelle membranes, while R-SNARE is localized to vesicle membranes. They form unique complexes consisting of one member of each subgroup, that mediate fusion between a specific type of vesicles and their target organelle.


Pssm-ID: 277234  Cd Length: 69  Bit Score: 65.43  E-value: 5.16e-14
                          10        20        30
                  ....*....|....*....|....*....|....*.
gi 2217368322 191 ALSEIETRHSEIIKLENSIRELHDMFMDMAMLVESQ 226
Cdd:cd15881     1 ALSEIEGRHKDIVRLESSIKELHDMFVDIAMLVENQ 36
COG5074 COG5074
t-SNARE complex subunit, syntaxin [Intracellular trafficking, secretion, and vesicular ...
30-226 1.15e-13

t-SNARE complex subunit, syntaxin [Intracellular trafficking, secretion, and vesicular transport];


Pssm-ID: 227406 [Multi-domain]  Cd Length: 280  Bit Score: 69.53  E-value: 1.15e-13
                          10        20        30        40        50        60        70        80
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2217368322  30 MDEFFE-QVEEIRGFIDKIAENVEEVKRKHSAILASPnpDEKTKEELEELMSDIKKTANKVRSKLKSIEQSIEqeeglnR 108
Cdd:COG5074    19 NGVTFMnKILSINKNLSVYEKEINQIDNLHKDLLTEV--FEEQSRKLRRSLDNFSSQTTDLQRNLKKDIKSAE------R 90
                          90       100       110       120       130       140       150       160
                  ....*....|....*....|....*....|....*....|....*....|....*....|....*....|....*....|
gi 2217368322 109 SSADLRIRKTQHSTLSRKFVEVMSEYNATQSDYRERCKGRIQRQLEITGRTTTSEELEDMLESGNPAIFASGIIMDSSIS 188
Cdd:COG5074    91 DGIHLANKQAQAENVRQKFLKLIQDYRIIDSNYREEEKEQARRQYIIAQPEATEDEVEAAINDVNGQQVFSQALLNANRR 170
                         170       180       190       200
                  ....*....|....*....|....*....|....*....|.
gi 2217368322 189 ---KQALSEIETRHSEIIKLENSIRELHDMFMDMAMLVESQ 226
Cdd:COG5074   171 geaKTALAEVQARHQEIKKIEKTMAELTQLFNDMEELVIEQ 211
SNARE_syntaxin4 cd15883
SNARE motif of syntaxin 4; Syntaxin-4 forms a complex with SNAP-23 (Qb/Qc) and R-SNAREs VAMP8, ...
191-226 1.99e-10

SNARE motif of syntaxin 4; Syntaxin-4 forms a complex with SNAP-23 (Qb/Qc) and R-SNAREs VAMP8, VAMP2 and VAMP7 which plays a role in exocytosis of secetory granule. Syntaxin 4 is member of the Qa subgroup of SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins, which consist of coiled-coil helices (called SNARE motifs) that mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complexes mediate membrane fusion, important for trafficking of newly synthesized proteins, recycling of pre-existing proteins and organelle formation. SNARE proteins are classified into four groups, Qa-, Qb-, Qc- and R-SNAREs, depending on whether the residue in the hydrophilic center layer of the four-helical bundle is a glutamine (Q) or arginine (R). Qa-, as well as Qb- and Qc-SNAREs, are localized to target organelle membranes, while R-SNARE is localized to vesicle membranes. They form unique complexes consisting of one member of each subgroup, that mediate fusion between a specific type of vesicles and their target organelle.


Pssm-ID: 277236  Cd Length: 63  Bit Score: 55.72  E-value: 1.99e-10
                          10        20        30
                  ....*....|....*....|....*....|....*.
gi 2217368322 191 ALSEIETRHSEIIKLENSIRELHDMFMDMAMLVESQ 226
Cdd:cd15883     1 ALNEIEARHSEIQKLERSIRELHDMFTYLAMEVEAQ 36
SNARE_syntaxin11 cd15878
SNARE motif of syntaxin 11; Syntaxin 11 (also known as STX11, FHL4, HLH4, HPLH4) is present on ...
191-228 4.36e-10

SNARE motif of syntaxin 11; Syntaxin 11 (also known as STX11, FHL4, HLH4, HPLH4) is present on endosomal membranes, including late endosomes and lysosomes in macrophages, and has been shown to bind Vti1b and regulate the availability of Vti1b to form other SNARE-complexes. Mutations in human STX11 has been linked to familial hemophagocytic lymphohistiocytosis type-4 (FHL-4), an autosomal recessive disorder of immune dysregulation. Syntaxin 11 is a member of the Qa subgroup of SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins, which consist of coiled-coil helices (called SNARE motifs) that mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complexes mediate membrane fusion, important for trafficking of newly synthesized proteins, recycling of pre-existing proteins and organelle formation. SNARE proteins are classified into four groups, Qa-, Qb-, Qc- and R-SNAREs, depending on whether the residue in the hydrophilic center layer of the four-helical bundle is a glutamine (Q) or arginine (R). Qa-, as well as Qb- and Qc-SNAREs, are localized to target organelle membranes, while R-SNARE is localized to vesicle membranes. They form unique complexes consisting of one member of each subgroup, that mediate fusion between a specific type of vesicles and their target organelle.


Pssm-ID: 277231  Cd Length: 63  Bit Score: 54.47  E-value: 4.36e-10
                          10        20        30
                  ....*....|....*....|....*....|....*...
gi 2217368322 191 ALSEIETRHSEIIKLENSIRELHDMFMDMAMLVESQVS 228
Cdd:cd15878     1 ALNEIETRHKELLELESRIREVHELFLQMALLVEEQAD 38
t_SNARE smart00397
Helical region found in SNAREs; All alpha-helical motifs that form twisted and parallel ...
189-226 1.08e-07

Helical region found in SNAREs; All alpha-helical motifs that form twisted and parallel four-helix bundles in target soluble N-ethylmaleimide-sensitive factor (NSF) attachment protein (SNAP) receptor proteins. This motif found in "Q-SNAREs".


Pssm-ID: 197699 [Multi-domain]  Cd Length: 66  Bit Score: 47.96  E-value: 1.08e-07
                           10        20        30
                   ....*....|....*....|....*....|....*...
gi 2217368322  189 KQALSEIETRHSEIIKLENSIRELHDMFMDMAMLVESQ 226
Cdd:smart00397   1 QQALAREEERDEELEQLEKSIQELKQIFLDMGTELEEQ 38
SNARE_Sso1 cd15849
SNARE motif of Sso1; Saccharomyces cerevisiae SNARE protein Sso1p forms a complex with ...
192-226 1.73e-07

SNARE motif of Sso1; Saccharomyces cerevisiae SNARE protein Sso1p forms a complex with synaptobrevin homolog Snc1p (R-SNARE) and the SNAP-25 homolog Sec9p (Qb/c) which is involved in exocytosis. Sso1 is member of the Qa subgroup of SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins, which consist of coiled-coil helices (called SNARE motifs) that mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complexes mediate membrane fusion, important for trafficking of newly synthesized proteins, recycling of pre-existing proteins and organelle formation. SNARE proteins are classified into four groups, Qa-, Qb-, Qc- and R-SNAREs, depending on whether the residue in the hydrophilic center layer of the four-helical bundle is a glutamine (Q) or arginine (R). Qa-, as well as Qb- and Qc-SNAREs, are localized to target organelle membranes, while R-SNARE is localized to vesicle membranes. They form unique complexes consisting of one member of each subgroup, that mediate fusion between a specific type of vesicles and their target organelle.


Pssm-ID: 277202  Cd Length: 64  Bit Score: 47.14  E-value: 1.73e-07
                          10        20        30
                  ....*....|....*....|....*....|....*
gi 2217368322 192 LSEIETRHSEIIKLENSIRELHDMFMDMAMLVESQ 226
Cdd:cd15849     1 LGEVQARHNEIQRIEQTLTELAQLFNDMATLVEQQ 35
SNARE_syntaxin19 cd15879
SNARE motif of syntaxin 19; Syntaxin 19 has been shown to have the potential to form SNARE ...
192-226 2.49e-07

SNARE motif of syntaxin 19; Syntaxin 19 has been shown to have the potential to form SNARE complexes with SNAP-23, 25 and 29 (Qb/Qc) and VAMP3 and VAMP8 (R-SNARE), indicating a role in post-Golgi trafficking or plasma membrane fusion. Syntaxin 19 is member of the Qa subgroup of SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins, which consist of coiled-coil helices (called SNARE motifs) that mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complexes mediate membrane fusion, important for trafficking of newly synthesized proteins, recycling of pre-existing proteins and organelle formation. SNARE proteins are classified into four groups, Qa-, Qb-, Qc- and R-SNAREs, depending on whether the residue in the hydrophilic center layer of the four-helical bundle is a glutamine (Q) or arginine (R). Qa-, as well as Qb- and Qc-SNAREs, are localized to target organelle membranes, while R-SNARE is localized to vesicle membranes. They form unique complexes consisting of one member of each subgroup, that mediate fusion between a specific type of vesicles and their target organelle.


Pssm-ID: 277232  Cd Length: 63  Bit Score: 46.75  E-value: 2.49e-07
                          10        20        30
                  ....*....|....*....|....*....|....*
gi 2217368322 192 LSEIETRHSEIIKLENSIRELHDMFMDMAMLVESQ 226
Cdd:cd15879     2 LSEIEQRHKELVSLENQIKDLKDLFIQISLLVEEQ 36
SNARE_Qa cd15840
SNARE motif, subgroup Qa; SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein ...
195-226 2.70e-07

SNARE motif, subgroup Qa; SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins consist of coiled-coil helices (called SNARE motifs) which mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complex mediates membrane fusion, important for trafficking of newly synthesized proteins, recycling of pre-existing proteins and organelle formation. SNARE proteins are classified into four groups, Qa-, Qb-, Qc- and R-SNAREs, depending on whether the residue in the hydrophilic center layer of the four-helical bundle is a glutamine (Q) or arginine (R). Qa-, as well as Qb- and Qc-SNAREs, are localized to target organelle membranes, while R-SNARE is localized to vesicle membranes. They form unique complexes consisting of one member of each subgroup, that mediate fusion between a specific type of vesicles and their target organelle. Their SNARE motifs form twisted and parallel heterotetrameric helix bundles. Examples for members of the Qa SNAREs are syntaxin 18, syntaxin 5, syntaxin 16, and syntaxin 1.


Pssm-ID: 277193 [Multi-domain]  Cd Length: 59  Bit Score: 46.74  E-value: 2.70e-07
                          10        20        30
                  ....*....|....*....|....*....|..
gi 2217368322 195 IETRHSEIIKLENSIRELHDMFMDMAMLVESQ 226
Cdd:cd15840     1 IEEREEEIREIESSIGEVNEIFKDLATLVTEQ 32
SNARE cd00193
SNARE motif; SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) ...
200-226 2.82e-03

SNARE motif; SNARE (soluble N-ethylmaleimide-sensitive factor attachment protein receptor) proteins consist of coiled-coil helices (called SNARE motifs) which mediate the interactions between SNARE proteins, and a transmembrane domain. The SNARE complex mediates membrane fusion, important for trafficking of newly synthesized proteins, recycling of pre-existing proteins and organelle formation. SNARE proteins are classified into four groups, Qa-, Qb-, Qc- and R-SNAREs, depending on whether the residue in the hydrophilic center layer of the four-helical bundle is a glutamine (Q) or arginine (R). Qa-, Qb- and Qc-SNAREs are localized to target organelle membranes, while R-SNARE is localized to vesicle membranes. They form unique complexes consisting of one member of each subgroup, that mediate fusion between a specific type of vesicles and their target organelle. Their SNARE motifs form twisted and parallel heterotetrameric helix bundles.


Pssm-ID: 277192  Cd Length: 54  Bit Score: 35.06  E-value: 2.82e-03
                          10        20
                  ....*....|....*....|....*..
gi 2217368322 200 SEIIKLENSIRELHDMFMDMAMLVESQ 226
Cdd:cd00193     1 ESLEQLEASIGELKDIGRDMAMELEEQ 27
 
Blast search parameters
Data Source: Precalculated data, version = cdd.v.3.21
Preset Options:Database: CDSEARCH/cdd   Low complexity filter: no  Composition Based Adjustment: yes   E-value threshold: 0.01

References:

  • Wang J et al. (2023), "The conserved domain database in 2023", Nucleic Acids Res.51(D)384-8.
  • Lu S et al. (2020), "The conserved domain database in 2020", Nucleic Acids Res.48(D)265-8.
  • Marchler-Bauer A et al. (2017), "CDD/SPARCLE: functional classification of proteins via subfamily domain architectures.", Nucleic Acids Res.45(D)200-3.
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