Annotations: 9HI3

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	2Fe-2S ferredoxin-like	8034524	3000113	SCOP2B (2022-06-29)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00111	2Fe-2S iron-sulfur cluster binding domain (Fer2)	2Fe-2S iron-sulfur cluster binding domain		Domain
A	PF03544	Gram-negative bacterial TonB protein C-terminal (TonB_C)	Gram-negative bacterial TonB protein C-terminal	The TonB_C domain is the well-characterised C-terminal region of the TonB receptor molecule. This protein is bound to an inner membrane-bound protein ExbB via a globular domain and has a flexible middle region that is likely to help in positioning th ...	The TonB_C domain is the well-characterised C-terminal region of the TonB receptor molecule. This protein is bound to an inner membrane-bound protein ExbB via a globular domain and has a flexible middle region that is likely to help in positioning the C-terminal domain into the iron-transporter barrel in the outer membrane [1]. TonB_C interacts with the N-terminal TonB box of the outer membrane transporter that binds the Fe3+-siderophore complex. The barrel of the transporter, consisting of 22 beta-sheets and an inside plug, binds the iron complex in the barrel entrance [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Protein TonB,Ferredoxin-1, chloroplastic	iron-sulfur cluster binding 2 iron, 2 sulfur cluster binding binding metal cluster binding small molecule binding electron transfer activity cation binding ion binding metal ion binding molecular transducer activity energy transducer activity	electron transport chain metabolic process cellular process generation of precursor metabolites and energy siderophore transport localization transport iron ion transport transition metal ion transport monoatomic ion transport monoatomic cation transport establishment of localization metal ion transport iron coordination entity transport electron transport chain metabolic process cellular process generation of precursor metabolites and energy siderophore transport localization transport iron ion transport transition metal ion transport monoatomic ion transport monoatomic cation transport establishment of localization metal ion transport iron coordination entity transport transmembrane transport establishment of protein localization nitrogen compound transport protein transport macromolecule localization intracellular protein localization	membrane-bounded organelle intracellular anatomical structure plastid intracellular membrane-bounded organelle intracellular organelle cellular anatomical structure plastid stroma organelle chloroplast stroma cytoplasm chloroplast outer membrane-bounded periplasmic space cell envelope periplasmic space membrane-bounded organelle intracellular anatomical structure plastid intracellular membrane-bounded organelle intracellular organelle cellular anatomical structure plastid stroma organelle chloroplast stroma cytoplasm chloroplast outer membrane-bounded periplasmic space cell envelope periplasmic space cell periphery protein-containing complex plasma membrane protein complex membrane plasma membrane membrane protein complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036010	2Fe-2S ferredoxin-like superfamily	Homologous Superfamily
A	IPR010241	Ferredoxin [2Fe-2S], plant	Family
A	IPR001041	2Fe-2S ferredoxin-type iron-sulfur binding domain	Domain
A	IPR012675	Beta-grasp domain superfamily	Homologous Superfamily
A	IPR006058	2Fe-2S ferredoxin, iron-sulphur binding site	Binding Site
A	IPR051045	TonB-dependent transporter energy transducer	Family
A	IPR006260	TonB/TolA, C-terminal	Domain
A	IPR003538	Gram-negative bacterial TonB protein	Family
A	IPR037682	TonB, C-terminal	Domain

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.