Annotations: 2M2K

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	TonB_C	e2m2kA1	A: a+b two layers	X: TolA/TonB C-terminal domain	H: TolA/TonB C-terminal domain (From Topology)	T: TolA/TonB C-terminal domain	F: TonB_C	ECOD (1.6)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.1150.10	Alpha Beta	2-Layer Sandwich	Fusion Protein Consisting Of Minor Coat Protein, Glycine Rich Linker, Tola, And A His Tag	Chain: A	CATH (4.3.0)

Chains	Accession	Name	Description	Comments	Source
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

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	HasB protein	molecular transducer activity energy transducer activity	transmembrane transport localization transport cellular process establishment of localization protein localization establishment of protein localization cellular localization nitrogen compound transport protein transport cellular macromolecule localization macromolecule localization	cell periphery protein-containing complex cellular anatomical structure plasma membrane protein complex membrane plasma membrane membrane protein complex