Annotations: 1IO1

CRYSTAL STRUCTURE OF F41 FRAGMENT OF FLAGELLIN

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1io1a_	Multi-domain proteins (alpha and beta)	Phase 1 flagellin	Phase 1 flagellin	Phase 1 flagellin	Phase 1 flagellin	(Salmonella enterica subsp. enterica serovar Typhimurium ) [TaxId: 90371 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	FliC central region-like	8021745	4003735	SCOP2 (2022-06-29)
A	SCOP2 Family	FlgL-like	8054353	4007637	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	FliC central-region like	8034125	3001385	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	FlgL-like	8054354	3002287	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	Flagellin_D3	e1io1A2	A: beta complex topology	X: barrel domains in phase 1 flagellin	H: barrel domains in phase 1 flagellin	T: barrel domains in phase 1 flagellin	F: Flagellin_D3	ECOD (v294.1)
A	FLIC_barrel	e1io1A3	A: beta complex topology	X: barrel domains in phase 1 flagellin	H: barrel domains in phase 1 flagellin	T: barrel domains in phase 1 flagellin	F: FLIC_barrel	ECOD (v294.1)
A	Flagellin_N,Flagellin_C	e1io1A4	A: alpha bundles	X: Four-helical up-and-down bundle	H: alpha-helical domain in phase 1 flagellin	T: alpha-helical domain in phase 1 flagellin	F: Flagellin_N,Flagellin_C	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.1330.10	Mainly Alpha	Up-down Bundle	f41 fragment of flagellin, N-terminal domain	f41 fragment of flagellin, N-terminal domain	CATH (4.3.0)
A	2.170.280.10	Mainly Beta	Beta Complex	f41 fragment of flagellin, middle domain	f41 fragment of flagellin, middle domain	CATH (4.3.0)
A	2.30.220.10	Mainly Beta	Roll	f41 fragment of flagellin, C-terminal domain	f41 fragment of flagellin, C-terminal domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00700	Bacterial flagellin C-terminal helical region (Flagellin_C)	Bacterial flagellin C-terminal helical region	Flagellins polymerise to form bacterial flagella. There is some similarity between this entry and Pfam:PF00669, particularly the motif NRFXSXIXXL. It has been suggested that these two regions associate [2] and this is shown to be correct as structur ...	Flagellins polymerise to form bacterial flagella. There is some similarity between this entry and Pfam:PF00669, particularly the motif NRFXSXIXXL. It has been suggested that these two regions associate [2] and this is shown to be correct as structurally this domain forms an extended helix that interacts with the N-terminal region (Pfam:PF00669) to form the D0 and D1 structural domains [3]. These domains are responsible for the activation of TLR5, with the C-terminal D0 region playing a key role [4-6].	Domain
A	PF08884	Flagellin D3 domain (Flagellin_D3)	Flagellin D3 domain	This domain is found in the central portion bacterial flagellin FliC. The domain contains a structural motif called a beta-folium fold [1]. Although no specific function is assigned to this domain its deletion leads to a reduction in filament stabi ...	This domain is found in the central portion bacterial flagellin FliC. The domain contains a structural motif called a beta-folium fold [1]. Although no specific function is assigned to this domain its deletion leads to a reduction in filament stability [2].	Domain
A	PF21504	Flagellin, barrel domain (FLIC_barrel)	Flagellin, barrel domain	This entry represents a barrel domain of flagellins FliC and FljB, which have a boomerang-shape with one arm composed of domain D1 and the other formed by D2 and D3 [1-3]. This entry corresponds to to subdomain D2b described in [4].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PHASE 1 FLAGELLIN	structural molecule activity molecular function activator activity molecular function regulator activity signaling receptor regulator activity receptor ligand activity signaling receptor activator activity	bacterial-type flagellum-dependent cell motility cellular process cell motility archaeal or bacterial-type flagellum-dependent cell motility cilium or flagellum-dependent cell motility	cell projection cellular anatomical structure organelle membraneless organelle bacterial-type flagellum

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR049365	Flagellin, barrel domain	Domain
A	IPR046358	Flagellin, C-terminal domain	Domain
A	IPR014981	Flagellin D3	Domain
A	IPR001029	Flagellin, N-terminal domain	Domain
A	IPR042187	Flagellin, C-terminal domain, subdomain 2	Homologous Superfamily
A	IPR001492	Flagellin	Family

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