Magnesium in PDB 2f3y: Calmodulin/Iq Domain Complex

The structure of Calmodulin/Iq Domain Complex, PDB code: 2f3y was solved by J.L.Fallon, F.A.Quiocho, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	24.37 / 1.45
Space group	C 1 2 1
Cell size a, b, c (Å), α, β, γ (°)	86.200, 30.960, 63.940, 90.00, 114.54, 90.00
R / Rfree (%)	18.9 / 21.9

The structure of Calmodulin/Iq Domain Complex also contains other interesting chemical elements:

Calcium

(Ca)

4 atoms

The binding sites of Magnesium atom in the Calmodulin/Iq Domain Complex (pdb code 2f3y). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total 2 binding sites of Magnesium where determined in the Calmodulin/Iq Domain Complex, PDB code: 2f3y:
Jump to Magnesium binding site number: 1; 2;

Magnesium binding site 1 out of 2 in the Calmodulin/Iq Domain Complex


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Calmodulin/Iq Domain Complex within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg1176 b:15.4 occ:1.00 OD1 A:ASP131 2.2 13.7 1.0 CG A:ASP131 3.2 10.6 1.0 CB A:ASP131 3.8 10.9 1.0 O A:HOH1195 4.2 10.8 1.0 OD2 A:ASP131 4.2 10.8 1.0 O A:HOH1227 4.3 22.1 1.0 O A:HOH1324 4.3 37.8 1.0 OD1 A:ASP133 4.4 11.2 1.0 O A:HOH1413 4.5 25.7 1.0 ND2 A:ASN137 4.7 11.9 1.0

Magnesium binding site 2 out of 2 in the Calmodulin/Iq Domain Complex


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 2 of Calmodulin/Iq Domain Complex within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg1177 b:17.5 occ:1.00 O B:HOH210 2.0 17.9 1.0 O A:HOH1350 2.0 21.1 1.0 O A:HOH1351 2.1 21.5 1.0 O B:HOH209 2.1 14.0 1.0 O A:HOH1193 2.1 20.4 1.0 O A:HOH1349 2.2 18.1 1.0 OE2 A:GLU87 3.9 18.1 1.0 O A:HOH1352 4.1 22.3 1.0 O A:HOH1222 4.1 15.3 1.0 O B:HOH211 4.2 37.8 1.0 NE2 A:GLN41 4.2 15.2 1.0 OE1 A:GLU87 4.3 17.0 1.0 NE A:ARG90 4.3 13.8 1.0 NZ B:LYS1665 4.4 17.1 1.0 CD A:GLU87 4.5 14.2 1.0 CD A:ARG90 4.7 13.3 1.0 CE B:LYS1665 4.8 14.6 1.0

J.L.Fallon, D.B.Halling, S.L.Hamilton, F.A.Quiocho. Structure of Calmodulin Bound to the Hydrophobic Iq Domain of the Cardiac Ca(V)1.2 Calcium Channel. Structure V. 13 1881 2005.
ISSN: ISSN 0969-2126
PubMed: 16338416
DOI: 10.1016/J.STR.2005.09.021