3QQ2

Crystal Structure of the Beta Domain of the Bordetella Autotransporter Brka

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: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD
Membrane Protein Annotation: mpstruc

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Autotransporter	e3qq2A1	A: beta barrels	X: Outer membrane meander beta-barrels	H: Autotransporter (From Topology)	T: Autotransporter	F: Autotransporter	ECOD (1.6)
B	Autotransporter	e3qq2B1	A: beta barrels	X: Outer membrane meander beta-barrels	H: Autotransporter (From Topology)	T: Autotransporter	F: Autotransporter	ECOD (1.6)
C	Autotransporter	e3qq2C1	A: beta barrels	X: Outer membrane meander beta-barrels	H: Autotransporter (From Topology)	T: Autotransporter	F: Autotransporter	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.128.130	Mainly Beta	Beta Barrel	Lipocalin	Autotransporter beta-domain	CATH (4.3.0)
B	2.40.128.130	Mainly Beta	Beta Barrel	Lipocalin	Autotransporter beta-domain	CATH (4.3.0)
C	2.40.128.130	Mainly Beta	Beta Barrel	Lipocalin	Autotransporter beta-domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF03797	Autotransporter beta-domain (Autotransporter)	Autotransporter beta-domain	Secretion of protein products occurs by a number of different pathways in bacteria. One of these pathways known as the type V pathway was first described for the IgA1 protease [2]. The protein component that mediates secretion through the outer memb ...	Secretion of protein products occurs by a number of different pathways in bacteria. One of these pathways known as the type V pathway was first described for the IgA1 protease [2]. The protein component that mediates secretion through the outer membrane is contained within the secreted protein itself, hence the proteins secreted in this way are called autotransporters. This family corresponds to the presumed integral membrane beta-barrel domain that transports the protein. This domain is found at the C terminus of the proteins it occurs in. The N terminus contains the variable passenger domain that is translocated across the membrane. Once the passenger domain is exported it is cleaved auto-catalytically in some proteins, in others a different protease is used and in some cases no cleavage occurs [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	BrkA autotransporter	-	-	cell surface cellular anatomical structure periplasmic space extracellular region cell periphery cell outer membrane external encapsulating structure membrane cell envelope outer membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR006315	Outer membrane autotransporter barrel domain	Domain
A, B, C	IPR004899	Pertactin, central region	Domain
A, B, C	IPR036709	Autotransporter beta-domain superfamily	Homologous Superfamily
A, B, C	IPR051551	Bacterial autotransporter adhesion	Family
A, B, C	IPR012332	Autotransporter, pectate lyase C-like domain superfamily	Homologous Superfamily
A, B, C	IPR003991	Pertactin virulence factor family	Family
A, B, C	IPR005546	Autotransporter beta-domain	Domain
A, B, C	IPR011050	Pectin lyase fold/virulence factor	Homologous Superfamily

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B, C	OPM	Transmembrane	Beta-barrel transmembrane	Autotransporter (AT) (n=12,S=14)	Autotransporters of N-terminal passenger domain

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B, C	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A, B, C	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B, C	mpstruc	TRANSMEMBRANE PROTEINS: BETA-BARREL	Outer Membrane Autotransporters	BrkA autotransport β-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.