Potassium in PDB 1xp5: Structure of the (Sr)CA2+-Atpase E2-ALF4- Form

All present enzymatic activity of Structure of the (Sr)CA2+-Atpase E2-ALF4- Form:
3.6.3.8;

The structure of Structure of the (Sr)CA2+-Atpase E2-ALF4- Form, PDB code: 1xp5 was solved by C.Olesen, T.L.S.Sorensen, R.C.Nielsen, J.V.Moller, P.Nissen, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	80.00 / 3.00
Space group	P 21 21 2
Cell size a, b, c (Å), α, β, γ (°)	86.510, 119.270, 142.260, 90.00, 90.00, 90.00
R / Rfree (%)	23.7 / 26.5

The structure of Structure of the (Sr)CA2+-Atpase E2-ALF4- Form also contains other interesting chemical elements:

Fluorine	(F)	4 atoms
Magnesium	(Mg)	1 atom
Aluminium	(Al)	1 atom

The binding sites of Potassium atom in the Structure of the (Sr)CA2+-Atpase E2-ALF4- Form (pdb code 1xp5). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total only one binding site of Potassium was determined in the Structure of the (Sr)CA2+-Atpase E2-ALF4- Form, PDB code: 1xp5:

Potassium binding site 1 out of 1 in the Structure of the (Sr)CA2+-Atpase E2-ALF4- Form


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Structure of the (Sr)CA2+-Atpase E2-ALF4- Form within 5.0Å range: probe atom residue distance (Å) B Occ A:K2003 b:67.8 occ:1.00 O A:LEU711 2.8 47.7 1.0 OE1 A:GLN244 2.9 0.8 1.0 OE1 A:GLU732 2.9 55.7 1.0 O A:ALA714 3.0 61.8 1.0 OE2 A:GLU732 3.0 64.0 1.0 O A:LYS712 3.1 66.4 1.0 CD A:GLU732 3.3 61.1 1.0 C A:LYS712 3.3 46.1 1.0 CD A:GLN244 3.5 98.8 1.0 CA A:LYS712 3.5 46.5 1.0 NE2 A:GLN244 3.8 93.4 1.0 C A:LEU711 3.8 42.5 1.0 C A:ALA714 4.0 56.1 1.0 N A:LYS713 4.1 44.8 1.0 N A:LYS712 4.1 40.7 1.0 N A:ALA714 4.3 50.6 1.0 N A:GLY717 4.3 49.2 1.0 C A:LYS713 4.4 48.2 1.0 O A:ALA730 4.6 52.8 1.0 CG A:GLU732 4.6 47.1 1.0 CG A:GLN244 4.6 88.9 1.0 C A:GLU715 4.6 57.8 1.0 O A:GLU715 4.7 59.0 1.0 CA A:ALA714 4.7 55.2 1.0 CA A:LYS713 4.7 48.4 1.0 N A:ILE716 4.7 58.0 1.0 CB A:LYS712 4.7 37.8 1.0 CA A:GLY717 4.8 39.9 1.0 C A:ILE716 4.8 53.7 1.0 O A:LYS713 4.9 48.0 1.0 CA A:ILE716 5.0 53.2 1.0 N A:GLU715 5.0 55.4 1.0

C.Olesen, T.L.S.Sorensen, R.C.Nielsen, J.V.Moller, P.Nissen. Dephosphorylation of the Calcium Pump Coupled to Counterion Occlusion Science V. 306 2251 2004.
ISSN: ISSN 0036-8075
PubMed: 15618517
DOI: 10.1126/SCIENCE.1106289