Caesium in PDB 1ttp: Tryptophan Synthase (E.C.4.2.1.20) in the Presence of Cesium, Room Temperature

All present enzymatic activity of Tryptophan Synthase (E.C.4.2.1.20) in the Presence of Cesium, Room Temperature:
4.2.1.20;

The structure of Tryptophan Synthase (E.C.4.2.1.20) in the Presence of Cesium, Room Temperature, PDB code: 1ttp was solved by S.Rhee, K.Parris, S.Ahmed, E.W.Miles, D.R.Davies, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	8.00 / 2.30
Space group	C 1 2 1
Cell size a, b, c (Å), α, β, γ (°)	185.300, 61.300, 68.100, 90.00, 94.80, 90.00
R / Rfree (%)	21.7 / 30.2

The binding sites of Caesium atom in the Tryptophan Synthase (E.C.4.2.1.20) in the Presence of Cesium, Room Temperature (pdb code 1ttp). This binding sites where shown within 5.0 Angstroms radius around Caesium atom.
In total 2 binding sites of Caesium where determined in the Tryptophan Synthase (E.C.4.2.1.20) in the Presence of Cesium, Room Temperature, PDB code: 1ttp:
Jump to Caesium binding site number: 1; 2;

Caesium binding site 1 out of 2 in the Tryptophan Synthase (E.C.4.2.1.20) in the Presence of Cesium, Room Temperature


Mono view


Stereo pair view

A full contact list of Caesium with other atoms in the Cs binding site number 1 of Tryptophan Synthase (E.C.4.2.1.20) in the Presence of Cesium, Room Temperature within 5.0Å range: probe atom residue distance (Å) B Occ B:Cs400 b:60.3 occ:1.00 O B:GLY232 2.9 19.1 1.0 O B:PHE306 3.3 37.4 1.0 O B:GLY268 3.4 25.8 1.0 O B:VAL231 3.4 12.7 1.0 O B:SER308 3.4 19.1 1.0 CD B:PRO270 3.6 31.1 1.0 C B:GLY232 3.9 16.7 1.0 O B:LEU304 4.0 39.0 1.0 CG B:PRO270 4.1 31.4 1.0 C B:GLY268 4.2 27.1 1.0 CA B:GLY232 4.4 15.1 1.0 C B:PHE306 4.4 35.7 1.0 C B:VAL231 4.4 12.0 1.0 CG B:PRO257 4.6 13.6 1.0 C B:SER308 4.6 18.1 1.0 N B:PHE306 4.7 38.6 1.0 CD B:PRO257 4.7 15.4 1.0 CG B:GLU256 4.8 23.8 1.0 CA B:GLY268 4.8 27.9 1.0 N B:SER308 4.9 21.0 1.0 CD2 B:PHE306 4.9 30.8 1.0 N B:GLY232 4.9 13.7 1.0

Caesium binding site 2 out of 2 in the Tryptophan Synthase (E.C.4.2.1.20) in the Presence of Cesium, Room Temperature


Mono view


Stereo pair view

A full contact list of Caesium with other atoms in the Cs binding site number 2 of Tryptophan Synthase (E.C.4.2.1.20) in the Presence of Cesium, Room Temperature within 5.0Å range: probe atom residue distance (Å) B Occ B:Cs401 b:0.3 occ:1.00 O B:GLY54 3.3 16.7 1.0 C B:GLY54 3.6 12.3 1.0 O B:PRO56 3.6 14.6 1.0 CA B:GLY54 4.0 10.7 1.0 N B:ARG55 4.3 9.7 1.0 C B:ARG55 4.3 9.8 1.0 O B:ARG55 4.5 9.8 1.0 N B:PRO56 4.5 10.1 1.0 CA B:ARG55 4.6 8.6 1.0 C B:PRO56 4.7 13.8 1.0 CD B:PRO56 4.8 8.6 1.0

S.Rhee, K.D.Parris, S.A.Ahmed, E.W.Miles, D.R.Davies. Exchange of K+ or Cs+ For Na+ Induces Local and Long-Range Changes in the Three-Dimensional Structure of the Tryptophan Synthase ALPHA2BETA2 Complex. Biochemistry V. 35 4211 1996.
ISSN: ISSN 0006-2960
PubMed: 8672457
DOI: 10.1021/BI952506D