Chlorine in PDB 3u69: Unliganded Wild-Type Human Thrombin

All present enzymatic activity of Unliganded Wild-Type Human Thrombin:
3.4.21.5;

The structure of Unliganded Wild-Type Human Thrombin, PDB code: 3u69 was solved by A.C.Figueiredo, C.C.Clement, M.Philipp, P.J.Barbosa Pereira, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	47.30 / 1.55
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	57.555, 72.995, 83.042, 90.00, 90.00, 90.00
R / Rfree (%)	13.3 / 16.7

The structure of Unliganded Wild-Type Human Thrombin also contains other interesting chemical elements:

Iodine	(I)	1 atom
Sodium	(Na)	1 atom

The binding sites of Chlorine atom in the Unliganded Wild-Type Human Thrombin (pdb code 3u69). This binding sites where shown within 5.0 Angstroms radius around Chlorine atom.
In total only one binding site of Chlorine was determined in the Unliganded Wild-Type Human Thrombin, PDB code: 3u69:

Chlorine binding site 1 out of 1 in the Unliganded Wild-Type Human Thrombin


Mono view


Stereo pair view

A full contact list of Chlorine with other atoms in the Cl binding site number 1 of Unliganded Wild-Type Human Thrombin within 5.0Å range: probe atom residue distance (Å) B Occ H:Cl3 b:20.6 occ:0.97 HA H:ASP513 3.0 16.9 1.0 HB3 H:ASP513 3.5 18.3 1.0 HB2 H:PRO512 3.5 18.3 1.0 CA H:ASP513 3.7 14.1 1.0 N H:ASP513 3.8 14.0 1.0 C H:PRO512 3.9 13.1 1.0 O H:PRO512 4.0 13.2 1.0 CB H:ASP513 4.1 15.2 1.0 HB3 H:PRO512 4.1 18.3 1.0 CB H:PRO512 4.2 15.2 1.0 H H:ASP513 4.2 16.8 1.0 HB2 H:ASP513 4.3 18.3 1.0 O H:HOH646 4.5 48.0 1.0 CA H:PRO512 4.7 13.5 1.0 O H:HOH36 4.9 19.2 1.0

A.C.Figueiredo, C.C.Clement, S.Zakia, J.Gingold, M.Philipp, P.J.Pereira. Rational Design and Characterization of D-Phe-Pro-D-Arg-Derived Direct Thrombin Inhibitors. Plos One V. 7 34354 2012.
ISSN: ESSN 1932-6203
PubMed: 22457833
DOI: 10.1371/JOURNAL.PONE.0034354