Magnesium in PDB 7zqi: Mhc Class I From A Wild Bird in Complex with A Nonameric Peptide P2

The structure of Mhc Class I From A Wild Bird in Complex with A Nonameric Peptide P2, PDB code: 7zqi was solved by S.Eltschkner, S.Mellinger, S.Buus, M.Nielsen, K.M.Paulsson, K.Lindkvist-Petersson, H.Westerdahl, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	50.58 / 2.15
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	39.202, 48.78, 202.135, 90, 90, 90
R / Rfree (%)	18 / 22.9

The structure of Mhc Class I From A Wild Bird in Complex with A Nonameric Peptide P2 also contains other interesting chemical elements:

Chlorine

(Cl)

1 atom

The binding sites of Magnesium atom in the Mhc Class I From A Wild Bird in Complex with A Nonameric Peptide P2 (pdb code 7zqi). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total only one binding site of Magnesium was determined in the Mhc Class I From A Wild Bird in Complex with A Nonameric Peptide P2, PDB code: 7zqi:

Magnesium binding site 1 out of 1 in the Mhc Class I From A Wild Bird in Complex with A Nonameric Peptide P2


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Mhc Class I From A Wild Bird in Complex with A Nonameric Peptide P2 within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg301 b:38.5 occ:1.00 O A:GLY119 2.1 39.2 1.0 O B:HOH305 2.2 41.3 1.0 O B:HOH308 2.2 57.3 1.0 O B:HOH311 2.2 61.5 1.0 O B:LYS64 2.3 34.3 1.0 O A:HOH435 2.3 53.2 1.0 C A:GLY119 3.4 38.8 1.0 C B:LYS64 3.5 34.9 1.0 CA A:GLY119 4.0 38.4 1.0 OE1 B:GLU8 4.1 61.8 1.0 CB B:TRP65 4.2 32.7 1.0 OE2 B:GLU8 4.2 59.5 1.0 CB B:LYS64 4.3 41.0 1.0 CA B:LYS64 4.4 36.9 1.0 N A:ARG120 4.4 37.9 1.0 CG B:GLN66 4.5 35.8 1.0 N B:TRP65 4.5 34.5 1.0 CD B:GLU8 4.5 59.2 1.0 CD1 B:TRP65 4.6 34.1 1.0 C B:TRP65 4.6 34.0 1.0 CA B:TRP65 4.7 33.3 1.0 CA A:ARG120 4.7 41.3 1.0 CG B:TRP65 4.8 32.7 1.0 O B:TRP65 4.8 37.8 1.0 N B:GLN66 4.8 35.2 1.0

S.Eltschkner, S.Mellinger, S.Buus, M.Nielsen, K.M.Paulsson, K.Lindkvist-Petersson, H.Westerdahl. Extraordinary Peptide-Binding Mode of A Songbird Mhc Class-I Molecule Suggests Mechanism to Counter Pathogen Immune Evasion To Be Published.