Sodium in PDB 4a1n: Human Mitochondrial Endo-Exonuclease

The structure of Human Mitochondrial Endo-Exonuclease, PDB code: 4a1n was solved by M.Welin, M.Moche, C.H.Arrowsmith, H.Berglund, C.Bountra, R.Collins, A.M.Edwards, S.Flodin, S.Graslund, M.Hammarstrom, I.Johansson, T.Karlberg, T.Kotenyova, T.Nyman, C.Persson, H.Schuler, A.G.Thorsell, L.Tresaugues, J.Weigelt, P.Nordlund, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	44.68 / 2.80
Space group	P 31 2 1
Cell size a, b, c (Å), α, β, γ (°)	103.180, 103.180, 83.890, 90.00, 90.00, 120.00
R / Rfree (%)	17.52 / 22.49

The structure of Human Mitochondrial Endo-Exonuclease also contains other interesting chemical elements:

Magnesium	(Mg)	1 atom
Chlorine	(Cl)	2 atoms

The binding sites of Sodium atom in the Human Mitochondrial Endo-Exonuclease (pdb code 4a1n). This binding sites where shown within 5.0 Angstroms radius around Sodium atom.
In total only one binding site of Sodium was determined in the Human Mitochondrial Endo-Exonuclease, PDB code: 4a1n:

Sodium binding site 1 out of 1 in the Human Mitochondrial Endo-Exonuclease


Mono view


Stereo pair view

A full contact list of Sodium with other atoms in the Na binding site number 1 of Human Mitochondrial Endo-Exonuclease within 5.0Å range: probe atom residue distance (Å) B Occ A:Na1355 b:44.6 occ:1.00 O A:GLU129 3.3 29.7 1.0 O A:ASP130 3.3 24.9 1.0 O A:VAL132 3.8 25.3 1.0 C A:ASP130 3.9 24.0 1.0 CA A:GLY218 4.1 22.3 1.0 N A:SER134 4.2 17.8 1.0 N A:GLY218 4.2 21.7 1.0 CA A:ASP130 4.3 20.3 1.0 CA A:SER134 4.3 16.3 1.0 CB A:SER134 4.4 17.7 1.0 C A:GLU129 4.4 27.4 1.0 C A:GLY133 4.4 21.8 1.0 C A:VAL132 4.6 22.9 1.0 O A:GLY133 4.7 21.9 1.0 N A:ASP130 4.9 21.5 1.0 N A:TYR131 4.9 17.2 1.0 CA A:GLY133 5.0 18.6 1.0

M.Welin, M.Moche, C.H.Arrowsmith, H.Berglund, C.Bountra, R.Collins, A.M.Edwards, S.Flodin, S.Graslund, M.Hammarstrom, I.Johansson, T.Karlberg, T.Kotenyova, T.Nyman, C.Persson, H.Schuler, A.G.Thorsell, L.Tresaugues, J.Weigelt, P.Nordlund. Human Mitochondrial Endo-Exonuclease To Be Published.