Zinc in PDB 1a42: Human Carbonic Anhydrase II Complexed with Brinzolamide

All present enzymatic activity of Human Carbonic Anhydrase II Complexed with Brinzolamide:
4.2.1.1;

The structure of Human Carbonic Anhydrase II Complexed with Brinzolamide, PDB code: 1a42 was solved by P.A.Boriack-Sjodin, D.W.Christianson, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	8.00 / 2.25
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 (%)	n/a / n/a

The structure of Human Carbonic Anhydrase II Complexed with Brinzolamide also contains other interesting chemical elements:

Mercury

(Hg)

1 atom

The binding sites of Zinc atom in the Human Carbonic Anhydrase II Complexed with Brinzolamide (pdb code 1a42). 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 Human Carbonic Anhydrase II Complexed with Brinzolamide, PDB code: 1a42:

Zinc binding site 1 out of 1 in the Human Carbonic Anhydrase II Complexed with Brinzolamide


Mono view


Stereo pair view

A full contact list of Zinc with other atoms in the Zn binding site number 1 of Human Carbonic Anhydrase II Complexed with Brinzolamide within 5.0Å range: probe atom residue distance (Å) B Occ A:Zn262 b:6.8 occ:1.00 ND1 A:HIS119 2.0 2.9 1.0 N21 A:BZU555 2.0 2.8 1.0 NE2 A:HIS96 2.0 2.0 1.0 NE2 A:HIS94 2.1 5.8 1.0 CE1 A:HIS96 2.8 5.3 1.0 CE1 A:HIS119 2.8 2.0 1.0 CD2 A:HIS94 2.9 3.3 1.0 O2A A:BZU555 2.9 2.0 1.0 S1 A:BZU555 2.9 6.5 1.0 CG A:HIS119 3.0 3.5 1.0 CD2 A:HIS96 3.1 2.0 1.0 CE1 A:HIS94 3.2 7.3 1.0 CB A:HIS119 3.6 7.5 1.0 OE1 A:GLU106 3.9 5.4 1.0 OG1 A:THR199 4.0 12.8 1.0 ND1 A:HIS96 4.0 3.1 1.0 C3 A:BZU555 4.0 6.8 1.0 NE2 A:HIS119 4.0 5.5 1.0 O1A A:BZU555 4.1 6.7 1.0 CG A:HIS94 4.1 5.5 1.0 CG A:HIS96 4.1 2.0 1.0 CD2 A:HIS119 4.1 2.7 1.0 ND1 A:HIS94 4.2 5.9 1.0 C4 A:BZU555 4.5 8.8 1.0 CD A:GLU106 4.8 5.1 1.0

T.Stams, Y.Chen, P.A.Boriack-Sjodin, J.D.Hurt, J.Liao, J.A.May, T.Dean, P.Laipis, D.N.Silverman, D.W.Christianson. Structures of Murine Carbonic Anhydrase IV and Human Carbonic Anhydrase II Complexed with Brinzolamide: Molecular Basis of Isozyme-Drug Discrimination. Protein Sci. V. 7 556 1998.
ISSN: ISSN 0961-8368
PubMed: 9541386