Annotations: 3PBT

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d3pbta1	Alpha and beta proteins (a+b)	Penicillin binding protein dimerisation domain	Penicillin binding protein dimerisation domain	automated matches	automated matches	(Pseudomonas aeruginosa PAO1 ) [TaxId: 208964 ],	SCOPe (2.08)
A	d3pbta2	Multi-domain proteins (alpha and beta)	beta-lactamase/transpeptidase-like	beta-lactamase/transpeptidase-like	automated matches	automated matches	(Pseudomonas aeruginosa PAO1 ) [TaxId: 208964 ],	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	PBP_dimer	e3pbtA2	A: beta complex topology	X: Penicillin binding protein dimerisation domain (From Topology)	H: Penicillin binding protein dimerisation domain (From Topology)	T: Penicillin binding protein dimerisation domain	F: PBP_dimer	ECOD (1.6)
A	Transpeptidase_1st_1	e3pbtA4	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	PRK15105	e3pbtA1	A: a+b two layers	X: ClpS-like	H: Penicillin binding protein ClpS-like domain (From Topology)	T: Penicillin binding protein ClpS-like domain	F: PRK15105	ECOD (1.6)
A	Transpeptidase_2nd	e3pbtA5	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	3.30.450.330	Alpha Beta	2-Layer Sandwich	Beta-Lactamase		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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF03717	Penicillin-binding Protein dimerisation domain (PBP_dimer)	Penicillin-binding Protein dimerisation domain	This domain is found at the N terminus of Class B High Molecular Weight Penicillin-Binding Proteins. Its function has not been precisely defined, but is strongly implicated in PBP polymerisation. The domain forms a largely disordered 'sugar tongs' st ...	This domain is found at the N terminus of Class B High Molecular Weight Penicillin-Binding Proteins. Its function has not been precisely defined, but is strongly implicated in PBP polymerisation. The domain forms a largely disordered 'sugar tongs' structure.	Domain
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 3	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	developmental process regulation of biological process regulation of developmental process biological regulation regulation of cell shape cell morphogenesis regulation of cell morphogenesis anatomical structure morphogenesis anatomical structure development regulation of biological quality regulation of anatomical structure morphogenesis cell septum assembly cytokinesis cellular component biogenesis developmental process regulation of biological process regulation of developmental process biological regulation regulation of cell shape cell morphogenesis regulation of cell morphogenesis anatomical structure morphogenesis anatomical structure development regulation of biological quality regulation of anatomical structure morphogenesis cell septum assembly cytokinesis cellular component biogenesis cellular component organization cellular component assembly cytokinetic process division septum assembly cellular process cell cycle cell division cellular component organization or biogenesis cell cycle process cell wall organization or biogenesis cell wall organization external encapsulating structure organization reproductive process in single-celled organism reproductive process FtsZ-dependent cytokinesis asexual reproduction cellular biosynthetic process glycosaminoglycan metabolic process organonitrogen compound biosynthetic process carbohydrate derivative metabolic process organic substance metabolic process peptidoglycan metabolic process organic substance biosynthetic process glycosaminoglycan biosynthetic process carbohydrate derivative biosynthetic process peptidoglycan-based cell wall biogenesis organonitrogen compound metabolic process cellular metabolic process macromolecule biosynthetic process peptidoglycan biosynthetic process cell wall biogenesis biosynthetic process cell wall macromolecule biosynthetic process aminoglycan metabolic process aminoglycan biosynthetic process metabolic process macromolecule metabolic process proteolysis primary metabolic process protein metabolic process	cell periphery plasma membrane membrane cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR012338	Beta-lactamase/transpeptidase-like	Homologous Superfamily
A	IPR036138	Penicillin-binding protein, dimerisation domain superfamily	Homologous Superfamily
A	IPR037532	Peptidoglycan D,D-transpeptidase FtsI	Family
A	IPR005311	Penicillin-binding protein, dimerisation domain	Domain
A	IPR001460	Penicillin-binding protein, transpeptidase	Domain

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.