Zinc in PDB 1h9q: H119Q Carbonic Anhydrase II

All present enzymatic activity of H119Q Carbonic Anhydrase II:
4.2.1.1;

The structure of H119Q Carbonic Anhydrase II, PDB code: 1h9q was solved by C.A.Lesburg, D.W.Christianson, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	20.00 / 2.20
Space group	P 1 21 1
Cell size a, b, c (Å), α, β, γ (°)	42.700, 41.700, 73.000, 90.00, 104.60, 90.00
R / Rfree (%)	18.2 / 24.9

The binding sites of Zinc atom in the H119Q Carbonic Anhydrase II (pdb code 1h9q). 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 H119Q Carbonic Anhydrase II, PDB code: 1h9q:

Zinc binding site 1 out of 1 in the H119Q Carbonic Anhydrase II


Mono view


Stereo pair view

A full contact list of Zinc with other atoms in the Zn binding site number 1 of H119Q Carbonic Anhydrase II within 5.0Å range: probe atom residue distance (Å) B Occ A:Zn262 b:24.5 occ:1.00 OE1 A:GLN119 1.9 14.1 1.0 NE2 A:HIS96 2.0 20.1 1.0 NE2 A:HIS94 2.1 23.2 1.0 O A:HOH300 2.3 28.8 1.0 CE1 A:HIS96 2.9 20.3 1.0 CD2 A:HIS94 3.0 20.8 1.0 CD A:GLN119 3.1 17.5 1.0 CD2 A:HIS96 3.1 17.8 1.0 CE1 A:HIS94 3.1 21.5 1.0 OG1 A:THR199 3.6 15.0 1.0 NE2 A:GLN119 3.9 15.1 1.0 OE1 A:GLU106 4.1 16.1 1.0 ND1 A:HIS96 4.1 19.3 1.0 CG A:GLN119 4.2 16.7 1.0 CG A:HIS94 4.2 21.8 1.0 CG A:HIS96 4.2 19.0 1.0 ND1 A:HIS94 4.2 21.8 1.0 CB A:GLN119 4.3 17.4 1.0 CD A:GLU106 4.8 17.4 1.0

C.A.Lesburg, C.Huang, D.W.Christianson, C.A.Fierke. Histidine --> Carboxamide Ligand Substitutions in the Zinc Binding Site of Carbonic Anhydrase II Alter Metal Coordination Geometry But Retain Catalytic Activity. Biochemistry V. 36 15780 1997.
ISSN: ISSN 0006-2960
PubMed: 9398308
DOI: 10.1021/BI971296X