Annotations: 4AR0

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	STN domain-like	8049849	4006665	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	STN domain-like	8057250	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	PF07660	e4ar0A1	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: PF07660	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF07660	Secretin and TonB N terminus short domain (STN)	Secretin and TonB N terminus short domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	TYPE IV PILUS BIOGENESIS AND COMPETENCE PROTEIN PILQ	-	DNA-mediated transformation cellular response to stimulus horizontal gene transfer response to stimulus establishment of competence for transformation cellular process protein localization establishment of protein localization cellular localization nitrogen compound transport transport secretion organic substance transport establishment of protein localization to extracellular region DNA-mediated transformation cellular response to stimulus horizontal gene transfer response to stimulus establishment of competence for transformation cellular process 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	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	IPR011662	Secretin/TonB, short N-terminal domain	Domain
A	IPR001775	GspD/PilQ family	Family
A	IPR004845	Type II secretion system protein GspD, conserved site	Conserved Site
A	IPR021731	AMIN domain	Domain
A	IPR013355	Type IV pilus secretin PilQ	Family

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.