Annotations: 4G08

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Secretin repeat domain-like	8057261	4004368	SCOP2 (2022-06-29)
A	SCOP2 Family	STN domain-like	8057262	4006665	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Secretin repeat domain-like	8057265	3002387	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	STN domain-like	8057266	3002388	SCOP2 (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	Secretin_N	e4g08A1	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	PRK15339	e4g08A2	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: PRK15339	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	PF03958	Bacterial type II/III secretion system short domain (Secretin_N)	Bacterial type II/III secretion system short domain	This is a short, often repeated, domain found in bacterial type II/III secretory system proteins. All previous NolW-like domains fall into this family.	Domain
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	Protein InvG	identical protein binding protein binding binding	protein localization establishment of protein localization cellular localization nitrogen compound transport transport secretion organic substance transport establishment of protein localization to extracellular region export from cell protein secretion establishment of localization protein localization to extracellular region localization secretion by cell protein transport protein localization establishment of protein localization cellular localization nitrogen compound transport transport secretion organic substance transport establishment of protein localization to extracellular region export from cell protein secretion establishment of localization protein localization to extracellular region localization secretion by cell protein transport cellular macromolecule localization macromolecule localization cellular process protein secretion by the type III secretion system transmembrane transport protein transmembrane transport	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	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 National Science Foundation (DBI-1832184), 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 R01GM133198.