3GR5

Periplasmic domain of the outer membrane secretin EscC from enteropathogenic E.coli (EPEC)

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)
A	Secretin_N	e3gr5A2	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: Ring-building motif II in type III secretion system (From Topology)	T: Ring-building motif II in type III secretion system	F: Secretin_N	ECOD (1.6)
A	DUF4974_1	e3gr5A1	A: a+b complex topology	X: N0 domain in phage tail proteins and secretins-like	H: N0 domain in phage tail proteins and secretins (From Topology)	T: N0 domain in phage tail proteins and secretins	F: DUF4974_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.55.50.30	Alpha Beta	3-Layer(bab) Sandwich	Phage tail protein beta-alpha-beta fold		CATH (4.3.0)
A	3.30.1370.120	Alpha Beta	2-Layer Sandwich	Ribosomal Protein S8	Chain: A, domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF21304	SPI-1 type 3 secretion system secretin, N0 domain (T3S_SPI-1_N0)	SPI-1 type 3 secretion system secretin, N0 domain	SPI-1 type 3 secretion system secretin forms a ring-shaped multimeric structure which is used to inject bacterial effector proteins into eukaryotic host cells [1-3]. It consists of several N-terminal short domains and a C-terminal secretin domain (P ...	SPI-1 type 3 secretion system secretin forms a ring-shaped multimeric structure which is used to inject bacterial effector proteins into eukaryotic host cells [1-3]. It consists of several N-terminal short domains and a C-terminal secretin domain (Pfam:PF00263). This entry represents the N-terminal N0 domain.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	EscC	-	protein localization establishment of protein localization cellular localization nitrogen compound transport transport secretion protein secretion by the type III secretion system establishment of protein localization to extracellular region export from cell protein secretion establishment of localization protein localization to extracellular region transmembrane transport localization secretion by cell protein localization establishment of protein localization cellular localization nitrogen compound transport transport secretion protein secretion by the type III secretion system establishment of protein localization to extracellular region export from cell protein secretion establishment of localization protein localization to extracellular region transmembrane transport localization secretion by cell protein transmembrane transport protein transport cellular macromolecule localization macromolecule localization cellular process	protein-containing complex type II protein secretion system complex type III protein secretion system complex cell periphery cell outer membrane external encapsulating structure membrane cell envelope outer membrane cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR050810	Bacterial Secretion System Channel Protein	Family
A	IPR005644	NolW-like	Domain
A	IPR004846	Type II/III secretion system, secretin-like domain	Domain
A	IPR038591	NolW-like superfamily	Homologous Superfamily
A	IPR003522	Type III secretion system outer membrane pore YscC/HrcC	Family
A	IPR004845	Type II secretion system protein GspD, conserved site	Conserved Site
A	IPR049034	SPI-1 type 3 secretion system secretin, N0 domain	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.