5KBW | pdb_00005kbw

Crystal structure of TmRibU, the riboflavin-binding S subunit from the Thermotoga maritima ECF transporter

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2 Family	ECF transporter substrate-specific component-like	8047982	4005895	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Gx transporter-like	8054037	3002268	SCOP2 (2022-06-29)
A	SCOP2B Superfamily	Gx transporter-like	8054037	3002268	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)
B	ECF_trnsprt	e5kbwB1	A: alpha bundles	X: Spectrin repeat-like	H: S-component of energy-coupling factor (ECF) transporters (From Topology)	T: S-component of energy-coupling factor (ECF) transporters	F: ECF_trnsprt	ECOD (1.6)
A	ECF_trnsprt	e5kbwA1	A: alpha bundles	X: Spectrin repeat-like	H: S-component of energy-coupling factor (ECF) transporters (From Topology)	T: S-component of energy-coupling factor (ECF) transporters	F: ECF_trnsprt	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	1.10.1760.20	Mainly Alpha	Orthogonal Bundle	Arp2/3 complex 21 kDa subunit ARPC3		CATH (4.3.0)
A	1.10.1760.20	Mainly Alpha	Orthogonal Bundle	Arp2/3 complex 21 kDa subunit ARPC3		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF12822	ECF transporter, substrate-specific component (ECF_trnsprt)	ECF transporter, substrate-specific component	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Riboflavin transporter RibU	vitamin transmembrane transporter activity transporter activity riboflavin transmembrane transporter activity transmembrane transporter activity organic anion transmembrane transporter activity	localization riboflavin transport nitrogen compound transport organic anion transport transport vitamin transport establishment of localization	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR025720	ECF transporter, Riboflavin transporter RibU	Family
A, B	IPR024529	ECF transporter, substrate-specific component	Family

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B	OPM	Transmembrane	Alpha-helical polytopic	Energy-coupling factor transporters	S component of prokaryotic riboflavin transporter

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A, B	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A, B	MemProtMD	Annotated as membrane protein by MemProtMD

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.