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Chlorine in PDB 1kwk: Crystal Structure of Thermus Thermophilus A4 Beta-Galactosidase in Complex with Galactose

Enzymatic activity of Crystal Structure of Thermus Thermophilus A4 Beta-Galactosidase in Complex with Galactose

All present enzymatic activity of Crystal Structure of Thermus Thermophilus A4 Beta-Galactosidase in Complex with Galactose:
3.2.1.23;

Protein crystallography data

The structure of Crystal Structure of Thermus Thermophilus A4 Beta-Galactosidase in Complex with Galactose, PDB code: 1kwk was solved by M.Hidaka, S.Fushinobu, N.Ohtsu, H.Motoshima, H.Matsuzawa, H.Shoun, T.Wakagi, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 28.62 / 2.20
Space group P 3 2 1
Cell size a, b, c (Å), α, β, γ (°) 97.592, 97.592, 128.898, 90.00, 90.00, 120.00
R / Rfree (%) 16.9 / 20

Other elements in 1kwk:

The structure of Crystal Structure of Thermus Thermophilus A4 Beta-Galactosidase in Complex with Galactose also contains other interesting chemical elements:

Zinc (Zn) 1 atom

Chlorine Binding Sites:

The binding sites of Chlorine atom in the Crystal Structure of Thermus Thermophilus A4 Beta-Galactosidase in Complex with Galactose (pdb code 1kwk). 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 of Thermus Thermophilus A4 Beta-Galactosidase in Complex with Galactose, PDB code: 1kwk:

Chlorine binding site 1 out of 1 in 1kwk

Go back to Chlorine Binding Sites List in 1kwk
Chlorine binding site 1 out of 1 in the Crystal Structure of Thermus Thermophilus A4 Beta-Galactosidase in Complex with Galactose


Mono view


Stereo pair view

A full contact list of Chlorine with other atoms in the Cl binding site number 1 of Crystal Structure of Thermus Thermophilus A4 Beta-Galactosidase in Complex with Galactose within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Cl801

b:24.5
occ:1.00
 NH2 A:ARG351 3.2 22.2 1.0
NE1 A:TRP11 3.3 24.3 1.0
N A:ARG353 3.4 15.4 1.0
N A:TYR7 3.5 20.0 1.0
NE A:ARG351 3.5 21.8 1.0
O A:ARG353 3.7 20.3 1.0
CB A:TRP352 3.7 19.7 1.0
CZ A:ARG351 3.7 23.8 1.0
CD1 A:TYR6 3.7 18.2 1.0
CD1 A:TYR7 3.9 19.0 1.0
N A:TRP352 4.0 16.6 1.0
CE2 A:TRP11 4.1 25.4 1.0
CA A:TYR6 4.1 20.2 1.0
CZ2 A:TRP11 4.2 21.7 1.0
CB A:TYR7 4.2 22.0 1.0
CA A:TRP352 4.2 18.9 1.0
CA A:ARG353 4.2 17.6 1.0
C A:TYR6 4.3 21.7 1.0
O A:CYS5 4.3 21.5 1.0
C A:TRP352 4.3 16.4 1.0
CE1 A:TYR6 4.3 21.4 1.0
CB A:ARG353 4.3 17.8 1.0
CA A:TYR7 4.3 21.9 1.0
CD1 A:TRP11 4.3 26.7 1.0
C A:ARG353 4.4 18.2 1.0
CB A:ARG351 4.6 15.4 1.0
CG A:TYR7 4.6 22.4 1.0
CD1 A:TRP352 4.6 20.4 1.0
CG A:TRP352 4.6 17.7 1.0
O A:TYR7 4.6 24.2 1.0
CG A:TYR6 4.7 22.0 1.0
CD A:ARG351 4.7 18.5 1.0
C A:TYR7 4.8 25.0 1.0
CG A:ARG351 4.8 14.2 1.0
CB A:TYR6 4.9 18.7 1.0
CE1 A:TYR7 4.9 20.6 1.0
C A:ARG351 5.0 15.9 1.0
NH1 A:ARG351 5.0 24.2 1.0

Reference:

M.Hidaka, S.Fushinobu, N.Ohtsu, H.Motoshima, H.Matsuzawa, H.Shoun, T.Wakagi. Trimeric Crystal Structure of the Glycoside Hydrolase Family 42 Beta-Galactosidase From Thermus Thermophilus A4 and the Structure of Its Complex with Galactose. J.Mol.Biol. V. 322 79 2002.
ISSN: ISSN 0022-2836
PubMed: 12215416
DOI: 10.1016/S0022-2836(02)00746-5
Page generated: Thu Jul 10 17:51:30 2025

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