1XX2

Refinement of P99 beta-lactamase from Enterobacter cloacae

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
AMR Gene Family: CARD Annotation
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	d1xx2a_	Multi-domain proteins (alpha and beta)	beta-lactamase/transpeptidase-like	beta-lactamase/transpeptidase-like	beta-Lactamase/D-ala carboxypeptidase	AMPC beta-Lactamase, class C	(Enterobacter cloacae ) [TaxId: 550 ],	SCOPe (2.08)
B	d1xx2b_	Multi-domain proteins (alpha and beta)	beta-lactamase/transpeptidase-like	beta-lactamase/transpeptidase-like	beta-Lactamase/D-ala carboxypeptidase	AMPC beta-Lactamase, class C	(Enterobacter cloacae ) [TaxId: 550 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Beta-lactamase_1st	e1xx2A1	A: alpha complex topology	X: alpha-helical domain in beta-lactamase/transpeptidase-like proteins (From Topology)	H: alpha-helical domain in beta-lactamase/transpeptidase-like proteins (From Topology)	T: alpha-helical domain in beta-lactamase/transpeptidase-like proteins	F: Beta-lactamase_1st	ECOD (1.6)
A	Beta-lactamase_2nd	e1xx2A2	A: a+b three layers	X: Profilin-like	H: a+b domain in beta-lactamase/transpeptidase-like proteins (From Topology)	T: a+b domain in beta-lactamase/transpeptidase-like proteins	F: Beta-lactamase_2nd	ECOD (1.6)
B	Beta-lactamase_1st	e1xx2B1	A: alpha complex topology	X: alpha-helical domain in beta-lactamase/transpeptidase-like proteins (From Topology)	H: alpha-helical domain in beta-lactamase/transpeptidase-like proteins (From Topology)	T: alpha-helical domain in beta-lactamase/transpeptidase-like proteins	F: Beta-lactamase_1st	ECOD (1.6)
B	Beta-lactamase_2nd	e1xx2B2	A: a+b three layers	X: Profilin-like	H: a+b domain in beta-lactamase/transpeptidase-like proteins (From Topology)	T: a+b domain in beta-lactamase/transpeptidase-like proteins	F: Beta-lactamase_2nd	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.710.10	Alpha Beta	3-Layer(aba) Sandwich	Beta-lactamase	DD-peptidase/beta-lactamase superfamily	CATH (4.3.0)
B	3.40.710.10	Alpha Beta	3-Layer(aba) Sandwich	Beta-lactamase	DD-peptidase/beta-lactamase superfamily	CATH (4.3.0)

AMR Gene Family: CARD Annotation CARD Database Homepage

Chains	Accession	Gene Family	Drug Class	Resistance Machanism	Provenance Source (Version)
A, B	ARO:3000072	ACT beta-lactamase	carbapenem, cephalosporin, cephamycin, penam	antibiotic inactivation	CARD (3.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00144	Beta-lactamase (Beta-lactamase)	Beta-lactamase	This family appears to be distantly related to Pfam:PF00905 and PF00768 D-alanyl-D-alanine carboxypeptidase.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Beta-lactamase	beta-lactamase activity hydrolase activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in cyclic amides catalytic activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds	antibiotic metabolic process catabolic process metabolic process antibiotic catabolic process response to stimulus response to chemical response to antibiotic	outer membrane-bounded periplasmic space cell envelope periplasmic space cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR001466	Beta-lactamase-related	Domain
A, B	IPR012338	Beta-lactamase/transpeptidase-like	Homologous Superfamily
A, B	IPR001586	Beta-lactamase, class-C active site	Active Site
A, B	IPR050491	Bacterial Cell Wall Synthesis and Modification	Family

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

Chains	Enzyme Name	Description	Catalytic Residues
A	beta-lactamase (Class C) M-CSA #257	This protein is a class C serine beta-lactamase with a substrate specificity for cephalosporins.	Defined by 6 residues: SER:A-64LYS:A-67TYR:A-150GLU:A-272LYS:A-315SER:A-318 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 3.5.2.6 (PDB Primary Data) Search M-CSA Motif + EC 3.5.2.6

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.