Annotations: 2XET

Conserved hydrophobic clusters on the surface of the Caf1A usher C-terminal domain are important for F1 antigen assembly

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	RNase_T	e2xetB1	A: beta barrels	X: alpha/beta-Hydrolases	H: alpha/beta-Hydrolases	T: alpha/beta-Hydrolases	F: RNase_T	ECOD (v294.2)
A	Ribosomal_S8e	e2xetA1	A: beta barrels	X: Immunoglobulin-like beta-sandwich	H: Ribosomal protein L14-related	T: Ribosomal protein L14-related	F: Ribosomal_S8e	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	2.60.40.2070	Mainly Beta	Sandwich	Immunoglobulin-like	PapC, C-terminal domain	CATH (4.3.0)
A	2.60.40.2070	Mainly Beta	Sandwich	Immunoglobulin-like	PapC, C-terminal domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF13953	PapC C-terminal domain (PapC_C)	PapC C-terminal domain	The PapC C-terminal domain is a structural domain found at the C-terminus of the E. coli PapC protein. Pili are assembled using the chaperone usher system. In E.coli this is composed of the chaperone PapD and the usher PapC. This domain represents th ...	The PapC C-terminal domain is a structural domain found at the C-terminus of the E. coli PapC protein. Pili are assembled using the chaperone usher system. In E.coli this is composed of the chaperone PapD and the usher PapC. This domain represents the C-terminal domain from PapC and its homologues. This domain has a beta-sandwich structure similar to the plug domain of PapC [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	F1 CAPSULE-ANCHORING PROTEIN	wide pore channel activity passive transmembrane transporter activity channel activity porin activity fimbrial usher porin activity transporter activity transmembrane transporter activity	cellular component biogenesis cellular component organization cellular component assembly cell projection organization cellular process pilus assembly cellular component organization or biogenesis pilus organization cell projection assembly	cell outer membrane cellular anatomical structure external encapsulating structure extracellular region membrane cell envelope outer membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR042186	Outer membrane usher protein FimD, plug domain	Homologous Superfamily
A, B	IPR037224	PapC, N-terminal domain superfamily	Homologous Superfamily
A, B	IPR018030	Fimbrial membrane usher, conserved site	Conserved Site
A, B	IPR025885	PapC, N-terminal domain	Domain
A, B	IPR043142	PapC-like, C-terminal domain superfamily	Homologous Superfamily
A, B	IPR025949	PapC-like, C-terminal domain	Domain
A, B	IPR000015	Outer membrane usher protein	Family

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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.