4PK1 | pdb_00004pk1

Structure of BamB fused to a BamA POTRA domain fragment

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	POTRA domain-like	8052274	3002100	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	POTRA domain-like	8052273	3002100	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Asparaginase_C	e4pk1A1	A: a/b three-layered sandwiches	X: Type III secretion system domain-like	H: Antibiotic binding domain of TipA-like multidrug resistance regulators	T: Antibiotic binding domain of TipA-like multidrug resistance regulators	F: Asparaginase_C	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.10.20.310	Alpha Beta	Roll	Ubiquitin-like (UB roll)	membrane protein fhac	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF13360	Outer membrane protein assembly factor BamB (PQQ_2)	Outer membrane protein assembly factor BamB	-	Repeat
A	PF07244	Surface antigen variable number repeat (POTRA)	Surface antigen variable number repeat	This family is found primarily in bacterial surface antigens, normally as variable number repeats at the N-terminus. The C-terminus of these proteins is normally represented by Pfam:PF01103. The alignment centres on a -GY- or -GF- motif. Some members ...	This family is found primarily in bacterial surface antigens, normally as variable number repeats at the N-terminus. The C-terminus of these proteins is normally represented by Pfam:PF01103. The alignment centres on a -GY- or -GF- motif. Some members of this family are found in the mitochondria. It is predicted to have a mixed alpha/beta secondary structure.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Chimera protein of Outer membrane protein assembly factors BamA and BamB	protein binding binding protein-folding chaperone binding identical protein binding	membrane organization membrane biogenesis membrane assembly cellular component organization cellular component biogenesis cellular component assembly cellular process cellular component organization or biogenesis cell envelope organization Gram-negative-bacterium-type cell outer membrane assembly external encapsulating structure organization establishment of protein localization cellular localization establishment of protein localization to membrane membrane organization membrane biogenesis membrane assembly cellular component organization cellular component biogenesis cellular component assembly cellular process cellular component organization or biogenesis cell envelope organization Gram-negative-bacterium-type cell outer membrane assembly external encapsulating structure organization establishment of protein localization cellular localization establishment of protein localization to membrane localization within membrane establishment of localization localization macromolecule localization intracellular protein localization protein insertion into membrane cell adhesion	cellular anatomical structure membrane cell outer membrane external encapsulating structure extracellular region cell envelope outer membrane protein-containing complex periplasmic side of cell outer membrane membrane protein complex side of membrane Bam protein complex extracellular protein-containing complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR039910	Surface antigen D15-like	Family
A	IPR034746	POTRA domain	Domain
A	IPR000184	Bacterial surface antigen (D15)	Domain
A	IPR010827	POTRA domain, BamA/TamA-like	Domain
A	IPR023707	Outer membrane protein assembly factor BamA	Family
A	IPR018391	Pyrrolo-quinoline quinone beta-propeller repeat	Repeat
A	IPR011047	Quinoprotein alcohol dehydrogenase-like superfamily	Homologous Superfamily
A	IPR017687	Outer membrane protein assembly factor BamB	Family
A	IPR002372	Pyrrolo-quinoline quinone repeat domain	Domain
A	IPR015943	WD40/YVTN repeat-like-containing domain superfamily	Homologous Superfamily

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.