1C9U

CRYSTAL STRUCTURE OF THE SOLUBLE QUINOPROTEIN GLUCOSE DEHYDROGENASE IN COMPLEX WITH PQQ

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Structure Motif: Primary M-CSA Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1c9ua_	All beta proteins	6-bladed beta-propeller	Soluble quinoprotein glucose dehydrogenase	Soluble quinoprotein glucose dehydrogenase	Soluble quinoprotein glucose dehydrogenase	(Acinetobacter calcoaceticus ) [TaxId: 471 ],	SCOPe (2.08)
B	d1c9ub_	All beta proteins	6-bladed beta-propeller	Soluble quinoprotein glucose dehydrogenase	Soluble quinoprotein glucose dehydrogenase	Soluble quinoprotein glucose dehydrogenase	(Acinetobacter calcoaceticus ) [TaxId: 471 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	GSDH-like	8042839	3001635	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	GSDH-like	8042839	3001635	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	GSDH	e1c9uA1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 6-bladed	F: GSDH	ECOD (1.6)
B	GSDH	e1c9uB1	A: beta duplicates or obligate multimers	X: beta-propeller-like	H: beta-propeller	T: 6-bladed	F: GSDH	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.120.10.30	Mainly Beta	6 Propeller	Neuraminidase	TolB, C-terminal domain	CATH (4.3.0)
B	2.120.10.30	Mainly Beta	6 Propeller	Neuraminidase	TolB, C-terminal domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF07995	Glucose / Sorbosone dehydrogenase (GSDH)	Glucose / Sorbosone dehydrogenase	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	SOLUBLE QUINOPROTEIN GLUCOSE DEHYDROGENASE	oxidoreductase activity oxidoreductase activity, acting on CH-OH group of donors quinoprotein glucose dehydrogenase activity glucose dehydrogenase activity oxidoreductase activity, acting on the CH-OH group of donors, quinone or similar compound as acceptor catalytic activity cation binding ion binding binding metal ion binding small molecule binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR011042	Six-bladed beta-propeller, TolB-like	Homologous Superfamily
A, B	IPR011041	Soluble quinoprotein glucose/sorbosone dehydrogenase, beta-propeller domain superfamily	Homologous Superfamily
A, B	IPR012938	Glucose/Sorbosone dehydrogenase	Domain
A, B	IPR019893	PQQ-dependent dehydrogenase SndH-like	Family

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

Chains	Enzyme Name	Description	Catalytic Residues
A	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 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 1.1.5.2 (UniProt) Search M-CSA Motif + EC 1.1.5.2

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.