1DIN | pdb_00001din

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1dina_	Alpha and beta proteins (a/b)	alpha/beta-Hydrolases	alpha/beta-Hydrolases	Dienelactone hydrolase	Dienelactone hydrolase	(Pseudomonas knackmussii ) [TaxId: 65741 ],	SCOPe (2.08)

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Dienelactone hydrolase	8020149	4000714	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	alpha/beta-Hydrolases	8032529	3000102	SCOP2 (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	DLH	e1dinA1	A: a/b three-layered sandwiches	X: alpha/beta-Hydrolases	H: alpha/beta-Hydrolases	T: alpha/beta-Hydrolases	F: DLH	ECOD (v294.1)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.1820	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Alpha/Beta hydrolase fold, catalytic domain	CATH (4.3.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	DIENELACTONE HYDROLASE	carboxymethylenebutenolidase activity hydrolase activity, acting on ester bonds carboxylic ester hydrolase activity hydrolase activity catalytic activity	-	-

Chains	Accession	Name	Type
A	IPR051049	Dienelactone hydrolase-like enzyme	Family
A	IPR002925	Dienelactone hydrolase	Domain
A	IPR029058	Alpha/Beta hydrolase fold	Homologous Superfamily

Modified Residue(s)
Chain	Residue(s)	Description
A	CSD	Parent Component: CYS : AA0262 : L-cysteine sulfinic acid MOD:00267

Chains	Enzyme Name	Description	Catalytic Residues
A	carboxymethylenebutenolidase M-CSA #492	Dienelactone hydrolase (DLHase) catalyses the hydrolysis of dienelactone to maleylacetate. This reaction is part of the beta-ketoadipate pathway used in bacteria and fungi to degrade aromatic compounds. Bacteria which utilise this pathway play an important role in the detoxification of many toxic halogenated aromatic compounds produced in industry. DLHase is a member of the alpha/beta hydrolase superfamily, although it does not possess a Ser-Hys-Asp catalytic triad and instead uses a triad of Cys-His-Asp.	Defined by 7 residues: GLU:A-36ILE:A-37TYR:A-85CYS:A-123LEU:A-124 [auth A-123]ASP:A-171 [auth A-170]HIS:A-202 [auth A-201] \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 3.1.1.45 (PDB Primary Data) Search M-CSA Motif + EC 3.1.1.45

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.