Chlorine in PDB 3etj: Crystal Structure E. Coli Purk in Complex with Mg, Adp, and Pi

All present enzymatic activity of Crystal Structure E. Coli Purk in Complex with Mg, Adp, and Pi:
4.1.1.21;

The structure of Crystal Structure E. Coli Purk in Complex with Mg, Adp, and Pi, PDB code: 3etj was solved by H.M.Holden, J.B.Thoden, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	30.00 / 1.60
Space group	C 1 2 1
Cell size a, b, c (Å), α, β, γ (°)	128.800, 70.500, 88.700, 90.00, 124.30, 90.00
R / Rfree (%)	n/a / n/a

The structure of Crystal Structure E. Coli Purk in Complex with Mg, Adp, and Pi also contains other interesting chemical elements:

Magnesium

(Mg)

4 atoms

The binding sites of Chlorine atom in the Crystal Structure E. Coli Purk in Complex with Mg, Adp, and Pi (pdb code 3etj). 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 Crystal Structure E. Coli Purk in Complex with Mg, Adp, and Pi, PDB code: 3etj:

Chlorine binding site 1 out of 1 in the Crystal Structure E. Coli Purk in Complex with Mg, Adp, and Pi


Mono view


Stereo pair view

A full contact list of Chlorine with other atoms in the Cl binding site number 1 of Crystal Structure E. Coli Purk in Complex with Mg, Adp, and Pi within 5.0Å range: probe atom residue distance (Å) B Occ A:Cl404 b:43.4 occ:1.00 N A:VAL243 3.0 16.3 1.0 O A:HOH424 3.2 19.7 1.0 NE2 A:HIS262 3.3 18.7 1.0 CA A:ARG242 3.3 14.3 1.0 CD2 A:HIS262 3.3 18.4 1.0 CE1 A:HIS262 3.4 14.7 1.0 CB A:ARG242 3.5 12.0 1.0 CG2 A:VAL243 3.5 13.9 1.0 CG A:HIS262 3.6 14.9 1.0 ND1 A:HIS262 3.6 15.3 1.0 C A:ARG242 3.6 15.9 1.0 O A:ALA48 3.8 24.4 1.0 CG1 A:VAL243 3.9 12.6 1.0 CB A:VAL243 4.1 14.1 1.0 CA A:VAL243 4.1 13.2 1.0 CD1 A:LEU16 4.3 14.8 1.0 CB A:HIS262 4.4 12.6 1.0 N A:ARG242 4.6 17.7 1.0 OG1 A:THR47 4.7 16.9 1.0 CD2 A:LEU16 4.8 14.3 1.0 O A:ARG242 4.8 12.8 1.0 O A:HOH425 4.8 24.0 1.0 O A:PRO241 4.9 17.8 1.0 C A:ALA48 4.9 23.0 1.0 CG A:ARG242 5.0 11.1 1.0

J.B.Thoden, H.M.Holden, S.M.Firestine. Structural Analysis of the Active Site Geometry of N(5)-Carboxyaminoimidazole Ribonucleotide Synthetase From Escherichia Coli. Biochemistry V. 47 13346 2008.
ISSN: ISSN 0006-2960
PubMed: 19053251
DOI: 10.1021/BI801734Z