Annotations: 4Z7R

The 1.98-angstrom crystal structure of Zn(2+)-bound PqqB from Methylobacterium extorquens

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Metallo-hydrolase/oxidoreductase	8087067	3001057	SCOP2B (2022-06-29)
A	SCOP2 Family	Coenzyme PQQ synthesis protein B, PqqB	8087066	4003854	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Metallo-hydrolase/oxidoreductase	8087067	3001057	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Transthyretin	e4z7rB1	A: beta barrels	X: Inserted helical domain in fatty acid synthase subunit beta	H: Voltage-gated ion channels	T: Voltage-gated ion channels	F: Transthyretin	ECOD (v294.2)
A	Transthyretin	e4z7rA1	A: beta barrels	X: Inserted helical domain in fatty acid synthase subunit beta	H: Voltage-gated ion channels	T: Voltage-gated ion channels	F: Transthyretin	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.60.15.10	Alpha Beta	4-Layer Sandwich	Metallo-beta-lactamase	Chain A	CATH (4.3.0)
A	3.60.15.10	Alpha Beta	4-Layer Sandwich	Metallo-beta-lactamase	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF12706	Beta-lactamase superfamily domain (Lactamase_B_2)	Beta-lactamase superfamily domain	This family is part of the beta-lactamase superfamily and is related to Pfam:PF00753.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Coenzyme PQQ synthesis protein B	-	pyrroloquinoline quinone biosynthetic process tricarboxylic acid metabolic process small molecule biosynthetic process oxoacid metabolic process ketone metabolic process carboxylic acid metabolic process organic acid biosynthetic process organic acid metabolic process carboxylic acid biosynthetic process biosynthetic process small molecule metabolic process metabolic process cellular process ketone biosynthetic process pyrroloquinoline quinone biosynthetic process tricarboxylic acid metabolic process small molecule biosynthetic process oxoacid metabolic process ketone metabolic process carboxylic acid metabolic process organic acid biosynthetic process organic acid metabolic process carboxylic acid biosynthetic process biosynthetic process small molecule metabolic process metabolic process cellular process ketone biosynthetic process tricarboxylic acid biosynthetic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR011842	Coenzyme PQQ biosynthesis protein B	Family
A, B	IPR036866	Ribonuclease Z/Hydroxyacylglutathione hydrolase-like	Homologous Superfamily
A, B	IPR001279	Metallo-beta-lactamase	Domain

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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.