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, ...
2-292
7.02e-108
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 pfam00135:
Pssm-ID: 473884 [Multi-domain] Cd Length: 513 Bit Score: 330.81 E-value: 7.02e-108
Esterases and lipases (includes fungal lipases, cholinesterases, etc.) These enzymes act on ...
2-239
2.78e-38
Esterases and lipases (includes fungal lipases, cholinesterases, etc.) These enzymes act on carboxylic esters (EC: 3.1.1.-). The catalytic apparatus involves three residues (catalytic triad): a serine, a glutamate or aspartate and a histidine.These catalytic residues are responsible for the nucleophilic attack on the carbonyl carbon atom of the ester bond. In contrast with other alpha/beta hydrolase fold family members, p-nitrobenzyl esterase and acetylcholine esterase have a Glu instead of Asp at the active site carboxylate.
Pssm-ID: 238191 [Multi-domain] Cd Length: 493 Bit Score: 146.32 E-value: 2.78e-38
Esterases and lipases (includes fungal lipases, cholinesterases, etc.) These enzymes act on ...
2-239
2.78e-38
Esterases and lipases (includes fungal lipases, cholinesterases, etc.) These enzymes act on carboxylic esters (EC: 3.1.1.-). The catalytic apparatus involves three residues (catalytic triad): a serine, a glutamate or aspartate and a histidine.These catalytic residues are responsible for the nucleophilic attack on the carbonyl carbon atom of the ester bond. In contrast with other alpha/beta hydrolase fold family members, p-nitrobenzyl esterase and acetylcholine esterase have a Glu instead of Asp at the active site carboxylate.
Pssm-ID: 238191 [Multi-domain] Cd Length: 493 Bit Score: 146.32 E-value: 2.78e-38
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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Functional characterization of the conserved domain architecture found on the query.
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if a domain or superfamily has been annotated with functional sites (conserved features),
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The table lists conserved domains identified on the query sequence. Click on the plus sign (+) on the left to display full descriptions, alignments, and scores.
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(labeled illustration) Standard Display shows only the best scoring domain model from each source, in each hit category listed below for each region on the query sequence.
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