Zinc in PDB 4ewx: Human Insulin

The structure of Human Insulin, PDB code: 4ewx was solved by M.P.Favero-Retto, L.C.Palmieri, L.M.T.R.Lima, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	40.98 / 2.20
Space group	H 3
Cell size a, b, c (Å), α, β, γ (°)	81.960, 81.960, 33.750, 90.00, 90.00, 120.00
R / Rfree (%)	15.4 / 24

The structure of Human Insulin also contains other interesting chemical elements:

Chlorine

(Cl)

2 atoms

The binding sites of Zinc atom in the Human Insulin (pdb code 4ewx). This binding sites where shown within 5.0 Angstroms radius around Zinc atom.
In total 2 binding sites of Zinc where determined in the Human Insulin, PDB code: 4ewx:
Jump to Zinc binding site number: 1; 2;

Zinc binding site 1 out of 2 in the Human Insulin


Mono view


Stereo pair view

A full contact list of Zinc with other atoms in the Zn binding site number 1 of Human Insulin within 5.0Å range: probe atom residue distance (Å) B Occ B:Zn101 b:14.3 occ:0.33 NE2 B:HIS10 2.1 10.9 1.0 CL B:CL102 2.7 30.4 0.3 CD2 B:HIS10 3.0 10.3 1.0 CE1 B:HIS10 3.1 11.6 1.0 ND1 B:HIS10 4.2 12.0 1.0 CG B:HIS10 4.2 11.6 1.0

Zinc binding site 2 out of 2 in the Human Insulin


Mono view


Stereo pair view

A full contact list of Zinc with other atoms in the Zn binding site number 2 of Human Insulin within 5.0Å range: probe atom residue distance (Å) B Occ D:Zn101 b:14.2 occ:0.33 NE2 D:HIS10 2.0 8.1 1.0 CE1 D:HIS10 2.9 8.9 1.0 CD2 D:HIS10 3.1 8.8 1.0 CL D:CL102 3.4 74.1 0.3 O D:HOH224 4.0 13.6 1.0 ND1 D:HIS10 4.1 9.8 1.0 CG D:HIS10 4.2 10.1 1.0 O D:HOH203 4.7 17.4 1.0

M.P.Favero-Retto, L.C.Palmieri, T.A.Souza, F.C.Almeida, L.M.Lima. Structural Meta-Analysis of Regular Human Insulin in Pharmaceutical Formulations. Eur J Pharm Biopharm V. 85 1112 2013.
ISSN: ISSN 0939-6411
PubMed: 23692694
DOI: 10.1016/J.EJPB.2013.05.005