PLAT (Polycystin-1, Lipoxygenase, Alpha-Toxin) domain or LH2 (Lipoxygenase homology 2) domain. It consists of an eight stranded beta-barrel. The domain can be found in various domain architectures, in case of lipoxygenases, alpha toxin, lipases and polycystin, but also as a single domain or as repeats.The putative function of this domain is to facilitate access to sequestered membrane or micelle bound substrates.
The actual alignment was detected with superfamily member cd01759:
Pssm-ID: 412108 Cd Length: 113 Bit Score: 180.64 E-value: 1.31e-56
Pancreatic lipase-like enzymes. Lipases are esterases that can hydrolyze long-chain ...
52-257
9.62e-94
Pancreatic lipase-like enzymes. Lipases are esterases that can hydrolyze long-chain acyl-triglycerides into di- and monoglycerides, glycerol, and free fatty acids at a water/lipid interface. A typical feature of lipases is "interfacial activation," the process of becoming active at the lipid/water interface, although several examples of lipases have been identified that do not undergo interfacial activation . The active site of a lipase contains a catalytic triad consisting of Ser - His - Asp/Glu, but unlike most serine proteases, the active site is buried inside the structure. A "lid" or "flap" covers the active site, making it inaccessible to solvent and substrates. The lid opens during the process of interfacial activation, allowing the lipid substrate access to the active site.
Pssm-ID: 238363 [Multi-domain] Cd Length: 275 Bit Score: 281.82 E-value: 9.62e-94
PLAT/LH2 domain of pancreatic triglyceride lipase. Lipases hydrolyze phospholipids and ...
271-383
1.31e-56
PLAT/LH2 domain of pancreatic triglyceride lipase. Lipases hydrolyze phospholipids and triglycerides to generate fatty acids for energy production or for storage and to release inositol phosphates that act as second messengers. The central role of triglyceride lipases is in energy production. The proposed function of PLAT/LH2 domains is to mediate interaction with lipids or membrane bound proteins.
Pssm-ID: 238857 Cd Length: 113 Bit Score: 180.64 E-value: 1.31e-56
lipoprotein lipase; Members of this protein family are lipoprotein lipase (EC 3.1.1.34), a ...
50-253
3.64e-36
lipoprotein lipase; Members of this protein family are lipoprotein lipase (EC 3.1.1.34), a eukaryotic triacylglycerol lipase active in plasma and similar to pancreatic and hepatic triacylglycerol lipases (EC 3.1.1.3). It is also called clearing factor. It cleaves chylomicron and VLDL triacylglycerols; it also has phospholipase A-1 activity.
Pssm-ID: 132274 [Multi-domain] Cd Length: 442 Bit Score: 136.95 E-value: 3.64e-36
PLAT/LH2 domain; This domain is found in a variety of membrane or lipid associated proteins. ...
285-370
3.49e-03
PLAT/LH2 domain; This domain is found in a variety of membrane or lipid associated proteins. It is called the PLAT (Polycystin-1, Lipoxygenase, Alpha-Toxin) domain or LH2 (Lipoxygenase homology) domain. The known structure of pancreatic lipase shows this domain binds to procolipase pfam01114, which mediates membrane association. So it appears possible that this domain mediates membrane attachment via other protein binding partners. The structure of this domain is known for many members of the family and is composed of a beta sandwich.
Pssm-ID: 396180 Cd Length: 115 Bit Score: 37.03 E-value: 3.49e-03
Pancreatic lipase-like enzymes. Lipases are esterases that can hydrolyze long-chain ...
52-257
9.62e-94
Pancreatic lipase-like enzymes. Lipases are esterases that can hydrolyze long-chain acyl-triglycerides into di- and monoglycerides, glycerol, and free fatty acids at a water/lipid interface. A typical feature of lipases is "interfacial activation," the process of becoming active at the lipid/water interface, although several examples of lipases have been identified that do not undergo interfacial activation . The active site of a lipase contains a catalytic triad consisting of Ser - His - Asp/Glu, but unlike most serine proteases, the active site is buried inside the structure. A "lid" or "flap" covers the active site, making it inaccessible to solvent and substrates. The lid opens during the process of interfacial activation, allowing the lipid substrate access to the active site.
Pssm-ID: 238363 [Multi-domain] Cd Length: 275 Bit Score: 281.82 E-value: 9.62e-94
PLAT/LH2 domain of pancreatic triglyceride lipase. Lipases hydrolyze phospholipids and ...
271-383
1.31e-56
PLAT/LH2 domain of pancreatic triglyceride lipase. Lipases hydrolyze phospholipids and triglycerides to generate fatty acids for energy production or for storage and to release inositol phosphates that act as second messengers. The central role of triglyceride lipases is in energy production. The proposed function of PLAT/LH2 domains is to mediate interaction with lipids or membrane bound proteins.
Pssm-ID: 238857 Cd Length: 113 Bit Score: 180.64 E-value: 1.31e-56
lipoprotein lipase; Members of this protein family are lipoprotein lipase (EC 3.1.1.34), a ...
50-253
3.64e-36
lipoprotein lipase; Members of this protein family are lipoprotein lipase (EC 3.1.1.34), a eukaryotic triacylglycerol lipase active in plasma and similar to pancreatic and hepatic triacylglycerol lipases (EC 3.1.1.3). It is also called clearing factor. It cleaves chylomicron and VLDL triacylglycerols; it also has phospholipase A-1 activity.
Pssm-ID: 132274 [Multi-domain] Cd Length: 442 Bit Score: 136.95 E-value: 3.64e-36
PLAT/ LH2 domain present in connection with a lipase domain. This family contains two major ...
271-383
2.05e-34
PLAT/ LH2 domain present in connection with a lipase domain. This family contains two major subgroups, the lipoprotein lipase (LPL) and the pancreatic triglyceride lipase. LPL is a key enzyme in catabolism of plasma lipoprotein triglycerides (TGs). The central role of triglyceride lipases is in energy production. In general, PLAT/LH2 domain's proposed function is to mediate interaction with lipids or membrane bound proteins.
Pssm-ID: 238853 Cd Length: 120 Bit Score: 123.17 E-value: 2.05e-34
Lipase. Lipases are esterases that can hydrolyze long-chain acyl-triglycerides into di- and ...
135-268
2.31e-28
Lipase. Lipases are esterases that can hydrolyze long-chain acyl-triglycerides into di- and monoglycerides, glycerol, and free fatty acids at a water/lipid interface. A typical feature of lipases is "interfacial activation", the process of becoming active at the lipid/water interface, although several examples of lipases have been identified that do not undergo interfacial activation . The active site of a lipase contains a catalytic triad consisting of Ser - His - Asp/Glu, but unlike most serine proteases, the active site is buried inside the structure. A "lid" or "flap" covers the active site, making it inaccessible to solvent and substrates. The lid opens during the process of interfacial activation, allowing the lipid substrate access to the active site.
Pssm-ID: 238382 [Multi-domain] Cd Length: 153 Bit Score: 108.36 E-value: 2.31e-28
PLAT (Polycystin-1, Lipoxygenase, Alpha-Toxin) domain or LH2 (Lipoxygenase homology 2) domain. It consists of an eight stranded beta-barrel. The domain can be found in various domain architectures, in case of lipoxygenases, alpha toxin, lipases and polycystin, but also as a single domain or as repeats.The putative function of this domain is to facilitate access to sequestered membrane or micelle bound substrates.
Pssm-ID: 238061 Cd Length: 116 Bit Score: 39.63 E-value: 3.87e-04
PLAT/LH2 domain; This domain is found in a variety of membrane or lipid associated proteins. ...
285-370
3.49e-03
PLAT/LH2 domain; This domain is found in a variety of membrane or lipid associated proteins. It is called the PLAT (Polycystin-1, Lipoxygenase, Alpha-Toxin) domain or LH2 (Lipoxygenase homology) domain. The known structure of pancreatic lipase shows this domain binds to procolipase pfam01114, which mediates membrane association. So it appears possible that this domain mediates membrane attachment via other protein binding partners. The structure of this domain is known for many members of the family and is composed of a beta sandwich.
Pssm-ID: 396180 Cd Length: 115 Bit Score: 37.03 E-value: 3.49e-03
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.
of the residues that compose this conserved feature have been mapped to the query sequence.
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