Nickel in PDB 3iga: Potassium Channel Kcsa-Fab Complex in Li+ and K+

The structure of Potassium Channel Kcsa-Fab Complex in Li+ and K+, PDB code: 3iga was solved by A.N.Thompson, K.Ilsoo, T.D.Panosian, T.M.Iverson, T.W.Allen, C.M.Nimigean, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	27.54 / 2.75
Space group	I 4
Cell size a, b, c (Å), α, β, γ (°)	155.799, 155.799, 75.775, 90.00, 90.00, 90.00
R / Rfree (%)	24.2 / 27.3

The binding sites of Nickel atom in the Potassium Channel Kcsa-Fab Complex in Li+ and K+ (pdb code 3iga). This binding sites where shown within 5.0 Angstroms radius around Nickel atom.
In total only one binding site of Nickel was determined in the Potassium Channel Kcsa-Fab Complex in Li+ and K+, PDB code: 3iga:

Nickel binding site 1 out of 1 in the Potassium Channel Kcsa-Fab Complex in Li+ and K+


Mono view


Stereo pair view

A full contact list of Nickel with other atoms in the Ni binding site number 1 of Potassium Channel Kcsa-Fab Complex in Li+ and K+ within 5.0Å range: probe atom residue distance (Å) B Occ C:Ni128 b:92.1 occ:0.25 NE2 C:HIS124 2.4 0.9 1.0 CE1 C:HIS124 3.1 0.3 1.0 CD2 C:HIS124 3.6 0.2 1.0 ND1 C:HIS124 4.3 0.3 1.0 CG C:HIS124 4.6 0.7 1.0

A.N.Thompson, I.Kim, T.D.Panosian, T.M.Iverson, T.W.Allen, C.M.Nimigean. Mechanism of Potassium-Channel Selectivity Revealed By Na(+) and Li(+) Binding Sites Within the Kcsa Pore. Nat.Struct.Mol.Biol. V. 16 1317 2009.
ISSN: ISSN 1545-9993
PubMed: 19946269
DOI: 10.1038/NSMB.1703