Calcium in PDB 6yib: 14-3-3 Sigma in Complex with SMAD3 PS423 Peptide

The structure of 14-3-3 Sigma in Complex with SMAD3 PS423 Peptide, PDB code: 6yib was solved by S.Kiehstaller, S.Graf, S.Hennig, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	19.74 / 1.70
Space group	C 2 2 21
Cell size a, b, c (Å), α, β, γ (°)	81.78, 111.69, 62.05, 90, 90, 90
R / Rfree (%)	16.7 / 20.3

The structure of 14-3-3 Sigma in Complex with SMAD3 PS423 Peptide also contains other interesting chemical elements:

Chlorine	(Cl)	3 atoms
Magnesium	(Mg)	3 atoms
Sodium	(Na)	1 atom

The binding sites of Calcium atom in the 14-3-3 Sigma in Complex with SMAD3 PS423 Peptide (pdb code 6yib). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total only one binding site of Calcium was determined in the 14-3-3 Sigma in Complex with SMAD3 PS423 Peptide, PDB code: 6yib:

Calcium binding site 1 out of 1 in the 14-3-3 Sigma in Complex with SMAD3 PS423 Peptide


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of 14-3-3 Sigma in Complex with SMAD3 PS423 Peptide within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca307 b:94.9 occ:1.00 O A:HOH413 2.8 59.2 1.0 O A:HOH677 3.7 44.8 1.0 O A:LYS109 3.9 25.0 1.0 OE1 A:GLU110 4.1 37.3 1.0 OE2 A:GLU110 4.2 40.0 1.0 CD A:GLU110 4.3 46.8 1.0 C A:LYS109 4.6 23.4 1.0 O A:HOH538 4.6 55.3 1.0 CG A:LYS109 4.7 37.1 1.0 CD A:LYS109 4.7 31.6 1.0 O A:HOH699 4.8 51.0 1.0 CB A:LYS109 4.8 26.4 1.0

S.Graf, S.Kiehstaller, C.Ottmann, S.Hennig. Identification and Characterization of 14-3-3/Smad Protein-Protein-Interactions To Be Published.