Annotations: 3P2U

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Lactamase_B_2	e3p2uB1	A: a+b four layers	X: Metallo-hydrolase/oxidoreductase (From Topology)	H: Metallo-hydrolase/oxidoreductase (From Topology)	T: Metallo-hydrolase/oxidoreductase	F: Lactamase_B_2	ECOD (1.6)
A	Lactamase_B_2	e3p2uA1	A: a+b four layers	X: Metallo-hydrolase/oxidoreductase (From Topology)	H: Metallo-hydrolase/oxidoreductase (From Topology)	T: Metallo-hydrolase/oxidoreductase	F: Lactamase_B_2	ECOD (1.6)

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	Protein phnP	cation binding manganese ion binding transition metal ion binding ion binding binding metal ion binding small molecule binding identical protein binding protein binding protein homodimerization activity protein dimerization activity phosphoric ester hydrolase activity phosphoribosyl 1,2-cyclic phosphate phosphodiesterase activity hydrolase activity, acting on ester bonds cation binding manganese ion binding transition metal ion binding ion binding binding metal ion binding small molecule binding identical protein binding protein binding protein homodimerization activity protein dimerization activity phosphoric ester hydrolase activity phosphoribosyl 1,2-cyclic phosphate phosphodiesterase activity hydrolase activity, acting on ester bonds phosphoric diester hydrolase activity hydrolase activity catalytic activity	catabolic process organic phosphonate metabolic process oxoacid metabolic process organic phosphonate catabolic process metabolic process cellular process small molecule metabolic process organic acid metabolic process phosphorus metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR036866	Ribonuclease Z/Hydroxyacylglutathione hydrolase-like	Homologous Superfamily
A, B	IPR017693	Phosphonate metabolism protein PhnP	Family
A, B	IPR001279	Metallo-beta-lactamase	Domain
A, B	IPR035682	Phosphonate metabolism protein, MBL domain	Domain

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.