5HLA

E. coli PBP1b in complex with acyl-cephalexin and moenomycin

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	UB2H	e5hlaA2	A: beta meanders	X: Colicin E3 ribonuclease domain-like	H: UvrB interaction domain (From Topology)	T: UvrB interaction domain	F: UB2H	ECOD (1.6)
A	Transpeptidase_1st_1	e5hlaA4	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	e5hlaA1	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)
A	Transgly	e5hlaA3	A: a+b complex topology	X: Lysozyme-like (From Homology)	H: Lysozyme-like	T: Lysozyme-like	F: Transgly	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.5.100	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Cytochrome c1, transmembrane anchor, C-terminal	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	1.10.3810.10	Mainly Alpha	Orthogonal Bundle	Penicillin binding protein transpeptidase fold	Biosynthetic peptidoglycan transglycosylase-like	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF14814	Bifunctional transglycosylase second domain (UB2H)	Bifunctional transglycosylase second domain	UB2H is the second domain of the transglycosylases, or penicillin-binding proteins PBP1bs)), the multi-domain membrane proteins essential for cell wall synthesis that are targeted by penicillin antibiotics. The exact function of the UB2H domain is un ...	UB2H is the second domain of the transglycosylases, or penicillin-binding proteins PBP1bs)), the multi-domain membrane proteins essential for cell wall synthesis that are targeted by penicillin antibiotics. The exact function of the UB2H domain is uncertain, but it may act as the binding component of PBP1b with different binding partners, or it may participate in the regulation between DNA repair and/or synthesis and cell wall formation during the bacterial cell cycle [1].	Domain
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	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 response to stimulus response to chemical response to antibiotic 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 response to stimulus response to chemical response to antibiotic cellular component organization cell wall organization or biogenesis cell wall repair cell wall organization cellular process cellular component organization or biogenesis external encapsulating structure organization carbohydrate derivative biosynthetic process peptidoglycan-based cell wall biogenesis cellular biosynthetic process glycosaminoglycan metabolic process cellular 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 metabolic process glycosaminoglycan biosynthetic process macromolecule metabolic process regulation of growth regulation of cellular component organization regulation of cellular process cellular developmental process developmental growth unidimensional cell growth positive regulation of biological process cell development regulation of cell differentiation cell growth regulation of cell development positive regulation of developmental process positive regulation of cell differentiation cell differentiation positive regulation of unidimensional cell growth positive regulation of developmental growth regulation of bipolar cell growth positive regulation of cellular process positive regulation of bipolar cell growth bipolar cell growth regulation of developmental growth growth positive regulation of cell development positive regulation of cell growth regulation of cell growth developmental growth involved in morphogenesis positive regulation of cell morphogenesis regulation of unidimensional cell growth positive regulation of growth proteolysis primary metabolic process protein metabolic process	membrane cellular anatomical entity cell periphery plasma membrane external encapsulating structure cell wall peptidoglycan-based cell wall outer membrane-bounded periplasmic space cell envelope periplasmic space

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	IPR032730	Transglycosylase PBP1b, N-terminal transmembrane domain	Domain
A	IPR011813	Penicillin-binding protein 1B	Family
A	IPR001264	Glycosyl transferase, family 51	Domain
A	IPR036950	Penicillin binding protein transglycosylase domain	Homologous Superfamily
A	IPR001460	Penicillin-binding protein, transpeptidase	Domain
A	IPR028166	Bifunctional transglycosylase second domain	Domain

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A	PDBTM	Annotated as membrane protein by PDBTM

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.