Magnesium in PDB 1m57: Structure of Cytochrome C Oxidase From Rhodobacter Sphaeroides (Eq(I-286) Mutant))

All present enzymatic activity of Structure of Cytochrome C Oxidase From Rhodobacter Sphaeroides (Eq(I-286) Mutant)):
1.9.3.1;

The structure of Structure of Cytochrome C Oxidase From Rhodobacter Sphaeroides (Eq(I-286) Mutant)), PDB code: 1m57 was solved by M.Svensson-Ek, J.Abramson, G.Larsson, S.Tornroth, P.Brezezinski, S.Iwata, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	4.00 / 3.00
Space group	H 3
Cell size a, b, c (Å), α, β, γ (°)	340.720, 340.720, 89.760, 90.00, 90.00, 120.00
R / Rfree (%)	29.3 / 32.9

The structure of Structure of Cytochrome C Oxidase From Rhodobacter Sphaeroides (Eq(I-286) Mutant)) also contains other interesting chemical elements:

Iron	(Fe)	4 atoms
Copper	(Cu)	6 atoms
Calcium	(Ca)	2 atoms

The binding sites of Magnesium atom in the Structure of Cytochrome C Oxidase From Rhodobacter Sphaeroides (Eq(I-286) Mutant)) (pdb code 1m57). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total 2 binding sites of Magnesium where determined in the Structure of Cytochrome C Oxidase From Rhodobacter Sphaeroides (Eq(I-286) Mutant)), PDB code: 1m57:
Jump to Magnesium binding site number: 1; 2;

Magnesium binding site 1 out of 2 in the Structure of Cytochrome C Oxidase From Rhodobacter Sphaeroides (Eq(I-286) Mutant))


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Structure of Cytochrome C Oxidase From Rhodobacter Sphaeroides (Eq(I-286) Mutant)) within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg2006 b:17.1 occ:1.00 OE1 B:GLU254 2.2 19.5 1.0 O A:HOH2057 2.2 14.2 1.0 O B:HOH1009 2.2 14.8 1.0 OD2 A:ASP412 2.2 19.7 1.0 O B:HOH1012 2.2 16.2 1.0 NE2 A:HIS411 2.2 20.2 1.0 O A:HOH2103 2.5 24.0 1.0 O B:HOH1010 2.9 3.4 1.0 CE1 A:HIS411 3.2 21.1 1.0 CD2 A:HIS411 3.2 21.5 1.0 CD B:GLU254 3.3 20.4 1.0 CG A:ASP412 3.4 23.4 1.0 O A:HOH2055 3.6 16.5 1.0 OE2 B:GLU254 3.8 21.8 1.0 OD2 B:ASP229 3.9 30.4 1.0 O B:SER253 4.1 10.3 1.0 CB A:ASP412 4.2 19.9 1.0 ND1 A:HIS411 4.3 21.8 1.0 OD1 A:ASP412 4.4 26.9 1.0 CG A:HIS411 4.4 22.3 1.0 CG B:GLU254 4.5 19.4 1.0 CB B:GLU254 4.5 16.9 1.0 OD1 B:ASP229 4.6 32.5 1.0 CG B:ASP229 4.7 30.2 1.0 CE2 A:TYR175 4.8 14.4 1.0 OG1 A:THR337 4.8 19.3 1.0 OH A:TYR175 4.8 18.6 1.0 CA B:GLU254 4.9 14.7 1.0

Magnesium binding site 2 out of 2 in the Structure of Cytochrome C Oxidase From Rhodobacter Sphaeroides (Eq(I-286) Mutant))


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 2 of Structure of Cytochrome C Oxidase From Rhodobacter Sphaeroides (Eq(I-286) Mutant)) within 5.0Å range: probe atom residue distance (Å) B Occ G:Mg3006 b:17.1 occ:1.00 NE2 G:HIS411 2.2 19.5 1.0 OE1 H:GLU254 2.2 19.5 1.0 O G:HOH3062 2.2 14.0 1.0 O H:HOH1050 2.2 14.2 1.0 O H:HOH1054 2.2 16.1 1.0 OD2 G:ASP412 2.2 20.1 1.0 O G:HOH3115 2.6 23.8 1.0 O H:HOH1051 2.9 5.7 1.0 CE1 G:HIS411 3.1 20.8 1.0 O G:HOH3060 3.1 16.3 1.0 CD2 G:HIS411 3.1 20.9 1.0 CD H:GLU254 3.2 20.4 1.0 CG G:ASP412 3.4 24.0 1.0 OE2 H:GLU254 3.7 21.5 1.0 OD2 H:ASP229 3.8 29.8 1.0 O H:SER253 4.2 10.8 1.0 ND1 G:HIS411 4.2 21.9 1.0 CG G:HIS411 4.3 22.0 1.0 CB G:ASP412 4.3 19.9 1.0 CG H:GLU254 4.5 19.8 1.0 OD1 G:ASP412 4.5 27.1 1.0 OD1 H:ASP229 4.5 32.7 1.0 CB H:GLU254 4.5 17.4 1.0 CG H:ASP229 4.6 30.3 1.0 OG1 G:THR337 4.8 18.8 1.0 OH G:TYR175 4.9 18.5 1.0 CE2 G:TYR175 4.9 14.8 1.0 CA H:GLU254 5.0 15.4 1.0

M.Svensson-Ek, J.Abramson, G.Larsson, S.Tornroth, P.Brzezinski, S.Iwata. The X-Ray Crystal Structures of Wild-Type and Eq(I-286) Mutant Cytochrome C Oxidases From Rhodobacter Sphaeroides. J.Mol.Biol. V. 321 329 2002.
ISSN: ISSN 0022-2836
PubMed: 12144789
DOI: 10.1016/S0022-2836(02)00619-8