Magnesium in PDB 4hqj: Crystal Structure of Na+,K+-Atpase in the Na+-Bound State

All present enzymatic activity of Crystal Structure of Na+,K+-Atpase in the Na+-Bound State:
3.6.3.9;

The structure of Crystal Structure of Na+,K+-Atpase in the Na+-Bound State, PDB code: 4hqj was solved by M.Nyblom, L.Reinhard, P.Gourdon, P.Nissen, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	12.00 / 4.30
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	109.073, 219.578, 261.958, 90.00, 90.00, 90.00
R / Rfree (%)	26.1 / 28.8

The structure of Crystal Structure of Na+,K+-Atpase in the Na+-Bound State also contains other interesting chemical elements:

Fluorine	(F)	8 atoms
Aluminium	(Al)	2 atoms
Sodium	(Na)	6 atoms

The binding sites of Magnesium atom in the Crystal Structure of Na+,K+-Atpase in the Na+-Bound State (pdb code 4hqj). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total 2 binding sites of Magnesium where determined in the Crystal Structure of Na+,K+-Atpase in the Na+-Bound State, PDB code: 4hqj:
Jump to Magnesium binding site number: 1; 2;

Magnesium binding site 1 out of 2 in the Crystal Structure of Na+,K+-Atpase in the Na+-Bound State


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Crystal Structure of Na+,K+-Atpase in the Na+-Bound State within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg1103 b:0.5 occ:1.00 F3 A:ALF1102 1.7 0.9 1.0 OD2 A:ASP710 2.1 1.0 1.0 O A:THR371 2.1 0.3 1.0 OD2 A:ASP369 2.1 0.9 1.0 CG A:ASP710 3.1 0.5 1.0 CG A:ASP369 3.2 0.8 1.0 C A:THR371 3.2 0.8 1.0 AL A:ALF1102 3.3 0.3 1.0 F1 A:ALF1102 3.4 0.2 1.0 OD1 A:ASP710 3.5 0.2 1.0 OD1 A:ASP369 3.7 0.8 1.0 CA A:THR371 4.0 0.3 1.0 CB A:THR371 4.0 0.7 1.0 O3B A:ADP1101 4.0 0.4 1.0 F2 A:ALF1102 4.1 0.3 1.0 N A:GLY711 4.1 0.9 1.0 N A:THR371 4.2 0.6 1.0 N A:GLY372 4.2 0.8 1.0 OD2 A:ASP714 4.2 0.6 1.0 OG1 A:THR373 4.3 0.3 1.0 CB A:ASP710 4.4 0.1 1.0 OD1 A:ASP714 4.4 0.3 1.0 CB A:ASP369 4.4 0.1 1.0 CA A:GLY372 4.5 0.7 1.0 CA A:GLY711 4.5 0.6 1.0 O2B A:ADP1101 4.7 0.5 1.0 CG2 A:THR371 4.7 0.7 1.0 CG A:ASP714 4.8 0.8 1.0 N A:ASP710 4.8 0.2 1.0 PB A:ADP1101 4.9 0.6 1.0 C A:LYS370 4.9 0.3 1.0 OD1 A:ASN713 4.9 0.9 1.0 N A:THR373 5.0 0.2 1.0

Magnesium binding site 2 out of 2 in the Crystal Structure of Na+,K+-Atpase in the Na+-Bound State


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 2 of Crystal Structure of Na+,K+-Atpase in the Na+-Bound State within 5.0Å range: probe atom residue distance (Å) B Occ C:Mg1103 b:0.3 occ:1.00 F3 C:ALF1102 1.7 0.3 1.0 O C:THR371 2.1 0.6 1.0 OD2 C:ASP710 2.1 0.8 1.0 OD2 C:ASP369 2.1 0.1 1.0 CG C:ASP710 3.1 0.8 1.0 CG C:ASP369 3.2 0.4 1.0 C C:THR371 3.2 0.9 1.0 AL C:ALF1102 3.3 0.9 1.0 F1 C:ALF1102 3.4 0.9 1.0 OD1 C:ASP710 3.5 0.9 1.0 O2B C:ADP1101 3.6 0.6 1.0 OD1 C:ASP369 3.6 0.1 1.0 CA C:THR371 3.9 0.5 1.0 CB C:THR371 4.0 0.2 1.0 O3B C:ADP1101 4.1 0.9 1.0 F2 C:ALF1102 4.1 0.2 1.0 N C:THR371 4.1 0.8 1.0 N C:GLY711 4.1 0.5 1.0 N C:GLY372 4.2 0.3 1.0 OD2 C:ASP714 4.2 0.1 1.0 OG1 C:THR373 4.3 0.2 1.0 CB C:ASP710 4.4 0.1 1.0 PB C:ADP1101 4.4 0.8 1.0 CA C:GLY372 4.4 0.9 1.0 CB C:ASP369 4.4 0.2 1.0 OD1 C:ASP714 4.5 0.4 1.0 CA C:GLY711 4.5 0.6 1.0 CG2 C:THR371 4.7 0.9 1.0 CG C:ASP714 4.8 0.1 1.0 N C:ASP710 4.8 0.3 1.0 C C:LYS370 4.9 0.5 1.0 N C:THR373 4.9 0.9 1.0 CA C:ASP710 5.0 0.5 1.0 C C:ASP710 5.0 0.7 1.0 OD1 C:ASN713 5.0 0.7 1.0

M.Nyblom, H.Poulsen, P.Gourdon, L.Reinhard, M.Andersson, E.Lindahl, N.Fedosova, P.Nissen. Crystal Structure of Na+, K(+)-Atpase in the Na(+)-Bound State. Science V. 342 123 2013.
ISSN: ISSN 0036-8075
PubMed: 24051246
DOI: 10.1126/SCIENCE.1243352