Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyGSDH-like 8042839 3001635 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyGSDH-like 8042839 3001635 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AGSDHe1c9uA1 A: beta duplicates or obligate multimersX: beta-propeller-likeH: beta-propellerT: 6-bladedF: GSDHECOD (1.6)
BGSDHe1c9uB1 A: beta duplicates or obligate multimersX: beta-propeller-likeH: beta-propellerT: 6-bladedF: GSDHECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A2.120.10.30 Mainly Beta 6 Propeller Neuraminidase TolB, C-terminal domainCATH (4.3.0)
B2.120.10.30 Mainly Beta 6 Propeller Neuraminidase TolB, C-terminal domainCATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF07995Glucose / Sorbosone dehydrogenase (GSDH)Glucose / Sorbosone dehydrogenase- Repeat

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

ChainsEnzyme NameDescriptionCatalytic Residues
quinoprotein glucose dehydrogenase  M-CSA #104

The soluble quinoprotein glucose dehydrogenase (s-GDH, EC 1.1.99.17) from Acinetobacter calcoaceticus is a classical quinoprotein which requires the cofactor pyrroloquinoline quinone (PQQ) to oxidise glucose to gluconolactone with the concomitant reduction of ubiquinone.

The reaction mechanism of PQQ-dependent enzymes has remained controversial due to the absence of comprehensive structural data. Three alternative proposals have been suggested: the addition-elimination reaction in which the glucose becomes covalently attached to the PQQ, the hydride transfer to the C5 of the PQQ, and the hydride transfer to the C4 of the PQQ [PMID:10508152, PMID:12686124].

Defined by 7 residues: HIS:A-144ASP:A-163ARG:A-228ALA:A-269TYR:A-271ASP:A-273GLU:A-309
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