3FIP

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Usher_1st	e3fipA1	A: beta barrels	X: Outer membrane meander beta-barrels	H: Usher PapC translocation pore (From Topology)	T: Usher PapC translocation pore	F: Usher_1st	ECOD (1.6)
A	Usher_2nd	e3fipA2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Usher_2nd	ECOD (1.6)
B	Usher_1st	e3fipB1	A: beta barrels	X: Outer membrane meander beta-barrels	H: Usher PapC translocation pore (From Topology)	T: Usher PapC translocation pore	F: Usher_1st	ECOD (1.6)
B	Usher_2nd	e3fipB4	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Usher_2nd	ECOD (1.6)

Chains	Accession	Name	Description	Comments	Source
A, B	PF00577	Outer membrane usher protein (Usher)	Outer membrane usher protein	-	Family

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Outer membrane usher protein papC	wide pore channel activity passive transmembrane transporter activity channel activity porin activity fimbrial usher porin activity transporter activity transmembrane transporter activity identical protein binding protein binding binding	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 periphery cell outer membrane external encapsulating structure membrane cell envelope outer membrane cellular anatomical entity

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