Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Ad1mpxa1 All beta proteins Galactose-binding domain-like Galactose-binding domain-like PepX C-terminal domain-like Alpha-amino acid ester hydrolase (Xanthomonas citri ) [TaxId: 346 ], SCOPe (2.08)
Ad1mpxa2 Alpha and beta proteins (a/b) alpha/beta-Hydrolases alpha/beta-Hydrolases PepX catalytic domain-like Alpha-amino acid ester hydrolase (Xanthomonas citri ) [TaxId: 346 ], SCOPe (2.08)
Bd1mpxb1 All beta proteins Galactose-binding domain-like Galactose-binding domain-like PepX C-terminal domain-like Alpha-amino acid ester hydrolase (Xanthomonas citri ) [TaxId: 346 ], SCOPe (2.08)
Bd1mpxb2 Alpha and beta proteins (a/b) alpha/beta-Hydrolases alpha/beta-Hydrolases PepX catalytic domain-like Alpha-amino acid ester hydrolase (Xanthomonas citri ) [TaxId: 346 ], SCOPe (2.08)
Cd1mpxc1 All beta proteins Galactose-binding domain-like Galactose-binding domain-like PepX C-terminal domain-like Alpha-amino acid ester hydrolase (Xanthomonas citri ) [TaxId: 346 ], SCOPe (2.08)
Cd1mpxc2 Alpha and beta proteins (a/b) alpha/beta-Hydrolases alpha/beta-Hydrolases PepX catalytic domain-like Alpha-amino acid ester hydrolase (Xanthomonas citri ) [TaxId: 346 ], SCOPe (2.08)
Dd1mpxd1 All beta proteins Galactose-binding domain-like Galactose-binding domain-like PepX C-terminal domain-like Alpha-amino acid ester hydrolase (Xanthomonas citri ) [TaxId: 346 ], SCOPe (2.08)
Dd1mpxd2 Alpha and beta proteins (a/b) alpha/beta-Hydrolases alpha/beta-Hydrolases PepX catalytic domain-like Alpha-amino acid ester hydrolase (Xanthomonas citri ) [TaxId: 346 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2 Familypepx c-terminal domain-like 8020445 4003032 SCOP2 (2022-06-29)
ASCOP2 FamilyPepX catalytic domain-like 8020446 4003340 SCOP2 (2022-06-29)
ASCOP2 Superfamilygalactose-binding domain-like 8032825 3000087 SCOP2 (2022-06-29)
ASCOP2 Superfamilyalpha/beta-Hydrolases 8032826 3000102 SCOP2 (2022-06-29)
BSCOP2B Superfamilyalpha/beta-Hydrolases 8032826 3000102 SCOP2B (2022-06-29)
BSCOP2B Superfamilygalactose-binding domain-like 8032825 3000087 SCOP2B (2022-06-29)
CSCOP2B Superfamilygalactose-binding domain-like 8032825 3000087 SCOP2B (2022-06-29)
CSCOP2B Superfamilyalpha/beta-Hydrolases 8032826 3000102 SCOP2B (2022-06-29)
DSCOP2B Superfamilyalpha/beta-Hydrolases 8032826 3000102 SCOP2B (2022-06-29)
DSCOP2B Superfamilygalactose-binding domain-like 8032825 3000087 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
APepX_Ce1mpxA1 A: beta sandwichesX: jelly-rollH: Concanavalin A-likeT: Galactose-binding domain-likeF: PepX_CECOD (1.6)
AHydrolase_4e1mpxA2 A: a/b three-layered sandwichesX: alpha/beta-Hydrolases (From Topology)H: alpha/beta-Hydrolases (From Topology)T: alpha/beta-HydrolasesF: Hydrolase_4ECOD (1.6)
BPepX_Ce1mpxB1 A: beta sandwichesX: jelly-rollH: Concanavalin A-likeT: Galactose-binding domain-likeF: PepX_CECOD (1.6)
BHydrolase_4e1mpxB2 A: a/b three-layered sandwichesX: alpha/beta-Hydrolases (From Topology)H: alpha/beta-Hydrolases (From Topology)T: alpha/beta-HydrolasesF: Hydrolase_4ECOD (1.6)
CPepX_Ce1mpxC1 A: beta sandwichesX: jelly-rollH: Concanavalin A-likeT: Galactose-binding domain-likeF: PepX_CECOD (1.6)
CHydrolase_4e1mpxC2 A: a/b three-layered sandwichesX: alpha/beta-Hydrolases (From Topology)H: alpha/beta-Hydrolases (From Topology)T: alpha/beta-HydrolasesF: Hydrolase_4ECOD (1.6)
DPepX_Ce1mpxD1 A: beta sandwichesX: jelly-rollH: Concanavalin A-likeT: Galactose-binding domain-likeF: PepX_CECOD (1.6)
DHydrolase_4e1mpxD2 A: a/b three-layered sandwichesX: alpha/beta-Hydrolases (From Topology)H: alpha/beta-Hydrolases (From Topology)T: alpha/beta-HydrolasesF: Hydrolase_4ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A3.40.50.1820 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold Alpha/Beta hydrolase fold, catalytic domainCATH (4.3.0)
A1.10.3020.10 Mainly Alpha Orthogonal Bundle alpha-amino acid ester hydrolase ( Helical cap domain) alpha-amino acid ester hydrolase ( Helical cap domain)CATH (4.3.0)
A2.60.120.260 Mainly Beta Sandwich Jelly Rolls Galactose-binding domain-likeCATH (4.3.0)
B3.40.50.1820 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold Alpha/Beta hydrolase fold, catalytic domainCATH (4.3.0)
B1.10.3020.10 Mainly Alpha Orthogonal Bundle alpha-amino acid ester hydrolase ( Helical cap domain) alpha-amino acid ester hydrolase ( Helical cap domain)CATH (4.3.0)
B2.60.120.260 Mainly Beta Sandwich Jelly Rolls Galactose-binding domain-likeCATH (4.3.0)
C3.40.50.1820 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold Alpha/Beta hydrolase fold, catalytic domainCATH (4.3.0)
C1.10.3020.10 Mainly Alpha Orthogonal Bundle alpha-amino acid ester hydrolase ( Helical cap domain) alpha-amino acid ester hydrolase ( Helical cap domain)CATH (4.3.0)
C2.60.120.260 Mainly Beta Sandwich Jelly Rolls Galactose-binding domain-likeCATH (4.3.0)
D3.40.50.1820 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold Alpha/Beta hydrolase fold, catalytic domainCATH (4.3.0)
D1.10.3020.10 Mainly Alpha Orthogonal Bundle alpha-amino acid ester hydrolase ( Helical cap domain) alpha-amino acid ester hydrolase ( Helical cap domain)CATH (4.3.0)
D2.60.120.260 Mainly Beta Sandwich Jelly Rolls Galactose-binding domain-likeCATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B, C, D
PF08530X-Pro dipeptidyl-peptidase C-terminal non-catalytic domain (PepX_C)X-Pro dipeptidyl-peptidase C-terminal non-catalytic domainThis domain contains a beta sandwich domain.Domain
A, B, C, D
PF02129X-Pro dipeptidyl-peptidase (S15 family) (Peptidase_S15)X-Pro dipeptidyl-peptidase (S15 family)- Family

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
alpha-amino-acid esterase  M-CSA #666

alpha-amino acid ester hydrolases (AEHs) catalyse the hydrolysis and synthesis of esters and amides with an alpha-amino group. They can be used to acylate a beta-lactam using an ester as acyl donor without cleaving the beta-lactam nuclei, so the enzyme is suitable for generating widely used antibiotics such as ampicillin, amoxicillin, and the cephalosporins, cephadroxil and cephalexin.

Defined by 5 residues: TYR:A-60 [auth A-82]SER:A-152 [auth A-174]TYR:A-153 [auth A-175]ASP:A-285 [auth A-307]HIS:A-318 [auth A-340]
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