Annotations: 7AHM

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	3.30.70.1450	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	Regulator of K+ conductance, C-terminal domain	CATH (utative)
C	3.30.70.1450	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	Regulator of K+ conductance, C-terminal domain	CATH (utative)
B	3.30.70.1450	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	Regulator of K+ conductance, C-terminal domain	CATH (utative)
A	3.30.70.1450	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	Regulator of K+ conductance, C-terminal domain	CATH (utative)

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF02080	TrkA-C domain (TrkA_C)	TrkA-C domain	This domain is often found next to the Pfam:PF02254 domain. The exact function of this domain is unknown. It has been suggested that it may bind an unidentified ligand [1]. The domain is predicted to adopt an all beta structure [1].	Domain
A, B, C, D	PF25991	K(+)/H(+) antiporter subunit KhtT, N-terminal domain (KhtT_N)	K(+)/H(+) antiporter subunit KhtT, N-terminal domain	This domain is found at the N-terminal end of K(+)/H(+) antiporter subunit KhtT from Bacillus subtilis (KhtT) and similar proteins mainly found in bacteria. KhtT is required for activity of the potassium/proton antiporter KhtU. It is involved in prot ...	This domain is found at the N-terminal end of K(+)/H(+) antiporter subunit KhtT from Bacillus subtilis (KhtT) and similar proteins mainly found in bacteria. KhtT is required for activity of the potassium/proton antiporter KhtU. It is involved in protection of the cell from methylglyoxal, a toxic by-product of glycolysis [3-5]. This domain adopts an unusual fold, comprised by a twisted five antiparallel beta-sheet followed by an alpha-helix [6].	Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	K(+)/H(+) antiporter subunit KhtT	monoatomic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity	localization transport monoatomic ion transport potassium ion transport monoatomic cation transport establishment of localization metal ion transport	cell periphery cellular anatomical structure plasma membrane membrane

Chains	Accession	Name	Type
A, B, C, D	IPR058776	Potassium/proton antiporter subunit KhtT-like, N-terminal domain	Domain
A, B, C, D	IPR006037	Regulator of K+ conductance, C-terminal	Domain
A, B, C, D	IPR036721	Regulator of K+ conductance, C-terminal domain superfamily	Homologous Superfamily
A, B, C, D	IPR050144	AAE Transporter	Family
A, B, C, D	IPR026278	Potassium/proton antiporter subunit KhtT	Family

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

7AHM | pdb_00007ahm