alpha/beta hydrolase family protein may catalyze the hydrolysis of substrates with different chemical composition or physicochemical properties using a nucleophile-His-acid catalytic triad
alpha/beta hydrolases; A functionally diverse superfamily containing proteases, lipases, ...
17-286
4.71e-82
alpha/beta hydrolases; A functionally diverse superfamily containing proteases, lipases, peroxidases, esterases, epoxide hydrolases and dehalogenases. The catalytic apparatus typically involves three residues (catalytic triad): a serine, a glutamate or aspartate and a histidine, and often the mechanism involves a nucleophilic attack on a carbonyl carbon atom.
The actual alignment was detected with superfamily member cd00707:
Pssm-ID: 473884 [Multi-domain] Cd Length: 275 Bit Score: 248.70 E-value: 4.71e-82
Pancreatic lipase-like enzymes. Lipases are esterases that can hydrolyze long-chain ...
17-286
4.71e-82
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: 248.70 E-value: 4.71e-82
lipoprotein lipase; Members of this protein family are lipoprotein lipase (EC 3.1.1.34), a ...
49-231
8.48e-31
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: 119.61 E-value: 8.48e-31
Pancreatic lipase-like enzymes. Lipases are esterases that can hydrolyze long-chain ...
17-286
4.71e-82
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: 248.70 E-value: 4.71e-82
lipoprotein lipase; Members of this protein family are lipoprotein lipase (EC 3.1.1.34), a ...
49-231
8.48e-31
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: 119.61 E-value: 8.48e-31
Lipase. Lipases are esterases that can hydrolyze long-chain acyl-triglycerides into di- and ...
101-231
5.45e-22
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: 89.87 E-value: 5.45e-22
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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