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

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilySimibi-like P-loop NTPases 8017784 3002018 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AAAA_26e1bs1A1 A: a/b three-layered sandwichesX: P-loop domains-likeH: P-loop domains-relatedT: P-loop containing nucleoside triphosphate hydrolasesF: AAA_26ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A3.40.50.300 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold P-loop containing nucleotide triphosphate hydrolasesCATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF01656CobQ/CobB/MinD/ParA nucleotide binding domain (CbiA)CobQ/CobB/MinD/ParA nucleotide binding domainThis family consists of various cobyrinic acid a,c-diamide synthases. These include CbiA Swiss:P29946 and CbiP Swiss:Q05597 from S.typhimurium [4], and CobQ Swiss:Q52686 from R. capsulatus [3]. These amidases catalyse amidations to various side chai ...This family consists of various cobyrinic acid a,c-diamide synthases. These include CbiA Swiss:P29946 and CbiP Swiss:Q05597 from S.typhimurium [4], and CobQ Swiss:Q52686 from R. capsulatus [3]. These amidases catalyse amidations to various side chains of hydrogenobyrinic acid or cobyrinic acid a,c-diamide in the biosynthesis of cobalamin (vitamin B12) from uroporphyrinogen III. Vitamin B12 is an important cofactor and an essential nutrient for many plants and animals and is primarily produced by bacteria [4]. The family also contains dethiobiotin synthetases as well as the plasmid partitioning proteins of the MinD/ParA family [6].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
PROTEIN (DETHIOBIOTIN SYNTHETASE)

InterPro: Protein Family Classification InterPro Database Homepage

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

ChainsEnzyme NameDescriptionCatalytic Residues
dethiobiotin synthase  M-CSA #74

Dethiobiotin synthase is the penultimate enzyme in the biotin synthesis pathway in E. coli and other microorganisms. The enzyme catalyses the formation of the ureido ring of dethiobiotin from (7R,8S)-7,8-diaminononanic acid (DAPA) and carbon dioxide. The enzyme requires ATP and divalent cations as cofactors. The enzyme represents a third enzymatic mechanism for carboxylation reactions, after the biotin-dependent carboxylases and ribulose-bisphosphate carboxylase.

Defined by 8 residues: THR:A-11GLU:A-12LYS:A-15THR:A-16LYS:A-37SER:A-41ASP:A-54GLU:A-115
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