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, ...
38-510
5.89e-87
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: 279.58 E-value: 5.89e-87
Esterases and lipases (includes fungal lipases, cholinesterases, etc.) These enzymes act on ...
39-490
3.38e-61
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: 211.04 E-value: 3.38e-61
Esterases and lipases (includes fungal lipases, cholinesterases, etc.) These enzymes act on ...
39-490
3.38e-61
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: 211.04 E-value: 3.38e-61
BD-FAE; This family represents a novel bifunctional feruloyl and acetyl xylan esterase (BD-FAE, ...
133-239
6.51e-11
BD-FAE; This family represents a novel bifunctional feruloyl and acetyl xylan esterase (BD-FAE, previously known as bifunctional carbohydrate esterase (CE)), which is active on complex natural xylans and was identified as the basis of a monophyletic clade gathering all homologs identified in PULs (polysaccharide utilization loci) predicted to act on xylan. It adopts an alpha-beta-hydrolase fold with the catalytic triad Ser-Asp-His. This new family of proteins is a new candidate for biomass processing due to its capacity to remove ferulic acid and acetic acid from natural corn and birchwood xylan substrates.
Pssm-ID: 466583 [Multi-domain] Cd Length: 215 Bit Score: 62.20 E-value: 6.51e-11
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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