8k1u

Potassium transporter KtrAB from Bacillus subtilis in ATP-bound state with addition of EDTA and EGTAPotassium transporter KtrAB from Bacillus subtilis in ATP-bound state with addition of EDTA and EGTA

Structural highlights

8k1u is a 12 chain structure with sequence from Bacillus subtilis. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	Electron Microscopy, Resolution 2.82Å
Ligands:	, ,
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

KTRB_BACSU Integral membrane subunit of the KtrAB potassium uptake transporter. The 2 major potassium transporter complexes KtrAB and KtrCD confer resistance to both suddenly imposed and prolonged osmotic stress.^[1] ^[2]

References

↑ Holtmann G, Bakker EP, Uozumi N, Bremer E. KtrAB and KtrCD: two K+ uptake systems in Bacillus subtilis and their role in adaptation to hypertonicity. J Bacteriol. 2003 Feb;185(4):1289-98. PMID:12562800
↑ Albright RA, Joh K, Morais-Cabral JH. Probing the structure of the dimeric KtrB membrane protein. J Biol Chem. 2007 Nov 30;282(48):35046-55. Epub 2007 Oct 10. PMID:17932047 doi:10.1074/jbc.M704260200

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OCA

[1] Holtmann G, Bakker EP, Uozumi N, Bremer E. KtrAB and KtrCD: two K+ uptake systems in Bacillus subtilis and their role in adaptation to hypertonicity. J Bacteriol. 2003 Feb;185(4):1289-98. PMID:12562800

[2] Albright RA, Joh K, Morais-Cabral JH. Probing the structure of the dimeric KtrB membrane protein. J Biol Chem. 2007 Nov 30;282(48):35046-55. Epub 2007 Oct 10. PMID:17932047 doi:10.1074/jbc.M704260200

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