Annotations: 2JCH

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Transpeptidase_1st_1	e2jchA3	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: Transpeptidase_1st_1	ECOD (1.6)
A	Transpeptidase_2nd	e2jchA1	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: Transpeptidase_2nd	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.90.1310.40	Alpha Beta	Alpha-Beta Complex	Penicillin-binding protein 2a (Domain 2)		CATH (4.3.0)
A	3.40.710.10	Alpha Beta	3-Layer(aba) Sandwich	Beta-lactamase	DD-peptidase/beta-lactamase superfamily	CATH (4.3.0)
A	3.40.50.12800	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00912	Transglycosylase (Transgly)	Transglycosylase	-	Family
A	PF00905	Penicillin binding protein transpeptidase domain (Transpeptidase)	Penicillin binding protein transpeptidase domain	The active site serine (residue 337 in Swiss:P14677) is conserved in all members of this family.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PENICILLIN-BINDING PROTEIN 1B	amide binding organic acid binding binding ion binding organic cyclic compound binding anion binding penicillin binding carboxylic acid binding heterocyclic compound binding monocarboxylic acid binding small molecule binding sulfur compound binding serine-type exopeptidase activity peptidase activity amide binding organic acid binding binding ion binding organic cyclic compound binding anion binding penicillin binding carboxylic acid binding heterocyclic compound binding monocarboxylic acid binding small molecule binding sulfur compound binding serine-type exopeptidase activity peptidase activity catalytic activity, acting on a protein serine hydrolase activity hydrolase activity serine-type D-Ala-D-Ala carboxypeptidase activity serine-type carboxypeptidase activity serine-type peptidase activity exopeptidase activity catalytic activity carboxypeptidase activity peptidoglycan glycosyltransferase activity glycosyltransferase activity transferase activity hexosyltransferase activity	response to stimulus response to chemical response to antibiotic carbohydrate derivative biosynthetic process peptidoglycan-based cell wall biogenesis cell wall organization or biogenesis glycosaminoglycan metabolic process carbohydrate derivative metabolic process macromolecule biosynthetic process cellular component biogenesis peptidoglycan biosynthetic process cell wall biogenesis biosynthetic process cell wall macromolecule biosynthetic process response to stimulus response to chemical response to antibiotic carbohydrate derivative biosynthetic process peptidoglycan-based cell wall biogenesis cell wall organization or biogenesis glycosaminoglycan metabolic process carbohydrate derivative metabolic process macromolecule biosynthetic process cellular component biogenesis peptidoglycan biosynthetic process cell wall biogenesis biosynthetic process cell wall macromolecule biosynthetic process aminoglycan metabolic process peptidoglycan metabolic process aminoglycan biosynthetic process cellular process metabolic process glycosaminoglycan biosynthetic process cellular component organization or biogenesis macromolecule metabolic process proteolysis primary metabolic process protein metabolic process	cellular anatomical structure membrane extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR012338	Beta-lactamase/transpeptidase-like	Homologous Superfamily
A	IPR050396	Glycosyltransferase 51/Transpeptidase	Family
A	IPR023346	Lysozyme-like domain superfamily	Homologous Superfamily
A	IPR001264	Glycosyl transferase, family 51	Domain
A	IPR036950	Penicillin binding protein transglycosylase domain	Homologous Superfamily
A	IPR001460	Penicillin-binding protein, transpeptidase	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.