Zinc in PDB 4nef: X-Ray Structure of Human Aquaporin 2

The structure of X-Ray Structure of Human Aquaporin 2, PDB code: 4nef was solved by A.Frick, U.Eriksson, F.D.Mattia, F.Oberg, K.Hedfalk, R.Neutze, W.D.Grip, P.M.T.Deen, S.Tornroth-Horsefield, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	49.96 / 2.75
Space group	P 42
Cell size a, b, c (Å), α, β, γ (°)	119.110, 119.110, 90.621, 90.00, 90.00, 90.00
R / Rfree (%)	20.2 / 22.5

The structure of X-Ray Structure of Human Aquaporin 2 also contains other interesting chemical elements:

Cadmium

(Cd)

2 atoms

The binding sites of Zinc atom in the X-Ray Structure of Human Aquaporin 2 (pdb code 4nef). This binding sites where shown within 5.0 Angstroms radius around Zinc atom.
In total only one binding site of Zinc was determined in the X-Ray Structure of Human Aquaporin 2, PDB code: 4nef:

Zinc binding site 1 out of 1 in the X-Ray Structure of Human Aquaporin 2


Mono view


Stereo pair view

A full contact list of Zinc with other atoms in the Zn binding site number 1 of X-Ray Structure of Human Aquaporin 2 within 5.0Å range: probe atom residue distance (Å) B Occ A:Zn302 b:77.5 occ:0.51 SG A:CYS75 2.3 81.2 1.0 O A:HOH413 2.5 54.4 1.0 ND1 A:HIS80 2.8 0.4 1.0 CG A:HIS80 3.0 0.2 1.0 CB A:HIS80 3.2 99.6 1.0 CB A:CYS75 3.4 79.8 1.0 O A:HOH403 3.6 76.5 1.0 CE1 A:HIS80 3.6 0.4 1.0 CD2 A:HIS80 3.9 0.3 1.0 CA A:CYS75 4.0 80.1 1.0 NE2 A:HIS80 4.2 1.0 1.0 CE1 A:PHE146 4.4 74.7 1.0 CZ A:PHE146 4.5 75.0 1.0 CA A:HIS80 4.7 0.3 1.0 CE1 A:HIS66 4.8 77.4 1.0 O A:CYS75 4.9 86.9 1.0 C A:CYS75 5.0 87.4 1.0

A.Frick, U.Eriksson, F.D.Mattia, F.Oberg, K.Hedfalk, R.Neutze, W.D.Grip, P.M.T.Deen, S.Tornroth-Horsefield. X-Ray Structure of Human Aquapor in 2 and Its Implications For Nephrogenic Diabetes Insipidus and Trafficking Proc.Natl.Acad.Sci.Usa 2014.
ISSN: ESSN 1091-6490