Caesium in PDB 2qwy: Sam-II Riboswitch Bound to S-Adenosylmethionine

The structure of Sam-II Riboswitch Bound to S-Adenosylmethionine, PDB code: 2qwy was solved by S.D.Gilbert, R.P.Rambo, D.Van Tyne, R.T.Batey, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	19.90 / 2.80
Space group	C 1 2 1
Cell size a, b, c (Å), α, β, γ (°)	115.258, 48.095, 109.617, 90.00, 108.25, 90.00
R / Rfree (%)	20.6 / 26.3

The structure of Sam-II Riboswitch Bound to S-Adenosylmethionine also contains other interesting chemical elements:

Magnesium

(Mg)

1 atom

The binding sites of Caesium atom in the Sam-II Riboswitch Bound to S-Adenosylmethionine (pdb code 2qwy). This binding sites where shown within 5.0 Angstroms radius around Caesium atom.
In total 2 binding sites of Caesium where determined in the Sam-II Riboswitch Bound to S-Adenosylmethionine, PDB code: 2qwy:
Jump to Caesium binding site number: 1; 2;

Caesium binding site 1 out of 2 in the Sam-II Riboswitch Bound to S-Adenosylmethionine


Mono view


Stereo pair view

A full contact list of Caesium with other atoms in the Cs binding site number 1 of Sam-II Riboswitch Bound to S-Adenosylmethionine within 5.0Å range: probe atom residue distance (Å) B Occ A:Cs101 b:98.0 occ:1.00 O6 A:G6 3.1 36.8 1.0 O6 A:G25 3.2 51.7 1.0 O A:HOH1153 3.4 51.4 1.0 O4 A:U26 3.5 38.0 1.0 O6 A:G5 3.7 51.4 1.0 O A:HOH1085 3.7 54.6 1.0 C6 A:G6 4.2 40.8 1.0 N4 A:C27 4.3 44.1 1.0 C6 A:G25 4.3 49.2 1.0 C6 A:G5 4.3 46.2 1.0 C4 A:U26 4.4 37.5 1.0 N7 A:G6 4.6 38.9 1.0 N3 A:U26 4.6 36.8 1.0 N4 A:C7 4.6 43.9 1.0 C5 A:G6 4.8 41.4 1.0 C5 A:G5 4.9 44.0 1.0 N7 A:G25 4.9 48.1 1.0 C5 A:G25 5.0 48.4 1.0

Caesium binding site 2 out of 2 in the Sam-II Riboswitch Bound to S-Adenosylmethionine


Mono view


Stereo pair view

A full contact list of Caesium with other atoms in the Cs binding site number 2 of Sam-II Riboswitch Bound to S-Adenosylmethionine within 5.0Å range: probe atom residue distance (Å) B Occ C:Cs501 b:0.1 occ:1.00 O6 C:G25 3.1 59.5 1.0 O6 C:G5 3.2 61.1 1.0 O6 C:G6 3.3 58.0 1.0 O4 C:U26 3.3 50.3 1.0 N4 C:C7 4.0 63.7 1.0 C6 C:G5 4.1 59.3 1.0 C6 C:G25 4.1 57.5 1.0 C4 C:U26 4.4 47.2 1.0 C6 C:G6 4.4 60.4 1.0 N3 C:U26 4.6 47.1 1.0 C5 C:G5 4.7 59.1 1.0 N7 C:G5 4.7 60.3 1.0 N7 C:G25 4.8 56.5 1.0 N4 C:C27 4.8 55.4 1.0 C5 C:G25 4.8 57.4 1.0 N7 C:G6 4.8 61.9 1.0

S.D.Gilbert, R.P.Rambo, D.Van Tyne, R.T.Batey. Structure of the Sam-II Riboswitch Bound to S-Adenosylmethionine. Nat.Struct.Mol.Biol. V. 15 177 2008.
ISSN: ISSN 1545-9993
PubMed: 18204466
DOI: 10.1038/NSMB.1371