Calcium 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:

Magnesium	(Mg)	2 atoms
Iron	(Fe)	4 atoms
Copper	(Cu)	6 atoms

The binding sites of Calcium 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 Calcium atom.
In total 2 binding sites of Calcium where determined in the Structure of Cytochrome C Oxidase From Rhodobacter Sphaeroides (Eq(I-286) Mutant)), PDB code: 1m57:
Jump to Calcium binding site number: 1; 2;

Calcium 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 Calcium with other atoms in the Ca 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:Ca1007 b:25.9 occ:1.00 O A:ALA57 2.3 23.1 1.0 O A:HOH2058 2.3 25.7 1.0 O A:GLY59 2.3 22.4 1.0 O A:GLU54 2.3 25.0 1.0 OE2 A:GLU54 2.3 27.0 1.0 OE1 A:GLN61 2.7 25.9 1.0 O A:PRO58 2.8 22.2 1.0 CD A:GLU54 3.3 26.7 1.0 C A:GLU54 3.4 25.6 1.0 C A:GLY59 3.4 22.7 1.0 C A:ALA57 3.5 22.9 1.0 C A:PRO58 3.5 23.1 1.0 CG A:GLU54 3.6 24.4 1.0 CD A:GLN61 3.9 26.9 1.0 N A:GLN61 3.9 22.6 1.0 CA A:VAL60 4.0 21.5 1.0 CA A:GLU54 4.1 25.7 1.0 N A:GLY59 4.2 23.3 1.0 N A:VAL60 4.3 21.9 1.0 CA A:PRO58 4.3 22.8 1.0 N A:PRO58 4.3 23.1 1.0 CA A:GLY59 4.4 23.6 1.0 N A:LEU55 4.4 25.1 1.0 C A:VAL60 4.5 22.2 1.0 OE1 A:GLU54 4.5 27.8 1.0 N A:ALA57 4.5 22.5 1.0 CB A:GLU54 4.5 25.2 1.0 CA A:ALA57 4.5 23.0 1.0 NE2 A:GLN61 4.5 29.6 1.0 CA A:LEU55 4.7 24.8 1.0 O A:ILE484 4.8 16.3 1.0

Calcium 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 Calcium with other atoms in the Ca 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:Ca1007 b:27.5 occ:1.00 O G:ALA57 2.3 23.2 1.0 O G:GLY59 2.3 22.2 1.0 O G:GLU54 2.3 25.4 1.0 O G:HOH3063 2.4 26.0 1.0 OE2 G:GLU54 2.4 27.0 1.0 O G:PRO58 2.5 21.9 1.0 OE1 G:GLN61 2.7 25.9 1.0 C G:PRO58 3.2 22.9 1.0 C G:GLY59 3.3 22.5 1.0 CD G:GLU54 3.4 26.6 1.0 C G:ALA57 3.4 23.2 1.0 C G:GLU54 3.5 25.8 1.0 CG G:GLU54 3.6 24.7 1.0 N G:GLY59 3.9 23.2 1.0 CD G:GLN61 4.0 27.1 1.0 CA G:VAL60 4.0 21.8 1.0 CA G:PRO58 4.0 22.9 1.0 N G:GLN61 4.1 22.9 1.0 N G:VAL60 4.1 22.1 1.0 CA G:GLU54 4.2 25.7 1.0 N G:PRO58 4.2 23.4 1.0 CA G:GLY59 4.2 23.5 1.0 CB G:GLU54 4.5 25.4 1.0 N G:ALA57 4.6 22.6 1.0 C G:VAL60 4.6 22.4 1.0 OE1 G:GLU54 4.6 27.8 1.0 N G:LEU55 4.6 25.1 1.0 CA G:ALA57 4.6 23.2 1.0 O G:ILE484 4.6 16.7 1.0 NE2 G:GLN61 4.6 29.8 1.0 CA G:LEU55 4.7 24.8 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