1C4X | pdb_00001c4x

2-HYDROXY-6-OXO-6-PHENYLHEXA-2,4-DIENOATE HYDROLASE (BPHD) FROM RHODOCOCCUS SP. STRAIN RHA1

External Resource: Annotation


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

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Ad1c4xa_ Alpha and beta proteins (a/b) alpha/beta-Hydrolases alpha/beta-Hydrolases Carbon-carbon bond hydrolase 2-hydroxy-6-oxo-6-phenylhexa-2,4-dienoate hydrolase (BPHD) (Rhodococcus jostii RHA1 ) [TaxId: 101510 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2 FamilyCarbon-carbon bond hydrolase 8020152 4000715 SCOP2 (2022-06-29)
ASCOP2 Superfamilyalpha/beta-Hydrolases 8032532 3000102 SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AAbhydrolase_1e1c4xA1 A: a/b three-layered sandwichesX: alpha/beta-HydrolasesH: alpha/beta-HydrolasesT: alpha/beta-HydrolasesF: Abhydrolase_1ECOD (v294.1)

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)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
PROTEIN (2-HYDROXY-6-OXO-6-PHENYLHEXA-2,4-DIENOATE HYDROLASE) -

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
IPR000073Alpha/beta hydrolase fold-1Domain
IPR050266AB hydrolase superfamilyFamily
IPR029058Alpha/Beta hydrolase foldHomologous Superfamily

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

ChainsEnzyme NameDescriptionCatalytic Residues
2,6-dioxo-6-phenylhexa-3-enoate hydrolase  M-CSA #437

2-Hydroxyl-6-oxo-6-phenylhexa-2,4-dienoic acid hydrolase (BphD) hydrolyses an unusual C-C bond of 2-hydroxy-6-oxo-6-phenylhexa-2,4-dienoic acid (HOPDA) to produce benzoic acid and 2-hydroxy-2,4-pentadienoic acid (HPD). HOPDA is an aromatic compound generated in a biphenyl/polychlorinated biphenyl (PCB) degradation pathway of bacteria.

It is a member of the alpha/beta hydrolase superfamily and has the canonical Ser-His-Asp triad. There has been a lot of debate as to the exact mechanism of this enzyme.

Defined by 8 residues: GLY:A-41 [auth A-40]ASN:A-110 [auth A-109]SER:A-111 [auth A-110]MET:A-112 [auth A-111]ARG:A-187 [auth A-186]ASP:A-236 [auth A-235]HIS:A-264 [auth A-263]TRP:A-265 [auth A-264]
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Explore in 3D: M-CSA Motif Definition
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EC: 3.7.1.8 (PDB Primary Data)