3A69

Atomic model of the bacterial flagellar hook based on docking an X-ray derived structure and terminal two alpha-helices into an 7.1 angstrom resolution cryoEM map

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Flagellar hook protein flgE	8043628	3000296	SCOP2B (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	FlaE	e3a69A1	A: beta sandwiches	X: Flagellar hook protein flgE D2 domain-like	H: Flagellar hook protein flgE D2 domain (From Topology)	T: Flagellar hook protein flgE D2 domain	F: FlaE	ECOD (1.6)
A	flgG	e3a69A2	A: beta complex topology	X: Flagellar hook protein flgE D1 domain (From Topology)	H: Flagellar hook protein flgE D1 domain (From Topology)	T: Flagellar hook protein flgE D1 domain	F: flgG	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF22692	Flagellar hook protein FlgE/F/G D1 domain (LlgE_F_G_D1)	Flagellar hook protein FlgE/F/G D1 domain	This entry represents the D1 domain found in three closely related flagellar proteins usually denoted FlgE, FlgF and FlgG. In FlgE there is an additional domain (D2, Pfam:PF07559) outside D1 [1-5]. The flagellar hook is a short, highly curved tubular ...	This entry represents the D1 domain found in three closely related flagellar proteins usually denoted FlgE, FlgF and FlgG. In FlgE there is an additional domain (D2, Pfam:PF07559) outside D1 [1-5]. The flagellar hook is a short, highly curved tubular structure that connects the flagellar motor to the long filament acting as a helical propeller.	Domain
A	PF00460	Flagella basal body rod protein (Flg_bb_rod)	Flagella basal body rod protein	-	Family
A	PF06429	Flagellar basal body rod FlgEFG protein C-terminal (Flg_bbr_C)	Flagellar basal body rod FlgEFG protein C-terminal	This family consists of a number of C-terminal domains of unknown function. This domain seems to be specific to flagellar basal-body rod and flagellar hook proteins in which Pfam:PF00460 is often present at the extreme N terminus.	Domain
A	PF07559	Flagellar basal body protein FlaE D2 domain (FlgE_D2)	Flagellar basal body protein FlaE D2 domain	This entry consists of several bacterial FlaE flagellar proteins. These proteins are part of the flagellar basal body rod complex. FlgE comprises two domains, D1 and D2, this entry represents D2, a flattened, eight-strand beta-barrel with significan ...	This entry consists of several bacterial FlaE flagellar proteins. These proteins are part of the flagellar basal body rod complex. FlgE comprises two domains, D1 and D2, this entry represents D2, a flattened, eight-strand beta-barrel with significant irregularity and extra loops [1,2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Flagellar hook protein flgE	-	bacterial-type flagellum-dependent swarming motility bacterial-type flagellum-dependent cell motility cellular process cell motility archaeal or bacterial-type flagellum-dependent cell motility cilium or flagellum-dependent cell motility	bacterial-type flagellum basal body cell projection organelle cellular anatomical entity bacterial-type flagellum non-membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR011491	Flagellar hook protein FlgE, D2 domain	Domain
A	IPR019776	Flagellar basal body rod protein, conserved site	Conserved Site
A	IPR020013	Flagellar hook-basal body protein, FlgE/F/G	Family
A	IPR010930	Flagellar basal-body/hook protein, C-terminal domain	Domain
A	IPR037058	Flagellar hook protein FlgE superfamily	Homologous Superfamily
A	IPR001444	Flagellar basal body rod protein, N-terminal	Domain
A	IPR037925	Flagellar hook-basal body protein, FlgE/F/G-like	Homologous Superfamily

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 R01GM133198.