Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyZinc-containing alcohol dehydrogenase-like 8000814 3000040 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyGroES-like 8000815 3000002 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AADH_Ne1qlhA1 A: beta barrelsX: GroES-likeH: GroES-relatedT: Alcohol dehydrogenase-like, N-terminal domainF: ADH_NECOD (1.6)
AADH_zinc_Ne1qlhA2 A: a/b three-layered sandwichesX: Rossmann-likeH: Rossmann-relatedT: NAD(P)-binding Rossmann-fold domainsF: ADH_zinc_NECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A3.90.180.10 Alpha Beta Alpha-Beta Complex Quinone Oxidoreductase Chain A, domain 1CATH (4.3.0)
A3.40.50.720 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold NAD(P)-binding Rossmann-like DomainCATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF00107Zinc-binding dehydrogenase (ADH_zinc_N)Zinc-binding dehydrogenase- Domain
PF08240Alcohol dehydrogenase GroES-like domain (ADH_N)Alcohol dehydrogenase GroES-like domainThis is the catalytic domain of alcohol dehydrogenases. Many of them contain an inserted zinc binding domain. This domain has a GroES-like structure [1-2].Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
ALCOHOL DEHYDROGENASE

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

ChainsEnzyme NameDescriptionCatalytic Residues
alcohol dehydrogenase (class I)  M-CSA #256

Alcohol dehydrogenase is the enzyme responsible for the conversion of alcohol to acetaldehyde that occurs in the cytoplasm, one of the three routes whereby acetaldehyde can be formed from alcohol before it passes into the mitochondria for the completion of the breakdown process. As a result the enzyme plays a vital role in alcohol metabolism, and inability to process alcohol is most commonly caused by deficiency.

This alcohol dehydrogenase is zinc-dependent and belongs to the class I zinc-containing ADH superfamily. Whilst this enzyme binds two zinc ions, only one of these is actively involved in catalysis. It has been noted that that many ADHs that lack a His at position 51 often have an analogous histidine at position 47 which can perform the same function (PMID:10970744), i.e. activating the Ser/Thr 48 for its catalytic function, also that the residue at position 48 is interchangeable between serine and threonine (acts as a general base to deprotonate the OH group of the alcohol substrate).

Defined by 5 residues: CYS:A-46SER:A-48HIS:A-51HIS:A-67CYS:A-174
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