Potassium in PDB 3bwp: Crystal Structure of A Self-Spliced Group II Intron

The structure of Crystal Structure of A Self-Spliced Group II Intron, PDB code: 3bwp was solved by N.Toor, K.S.Keating, S.D.Taylor, A.M.Pyle, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	50.00 / 3.10
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	88.854, 94.958, 225.910, 90.00, 90.00, 90.00
R / Rfree (%)	27.6 / 31

The structure of Crystal Structure of A Self-Spliced Group II Intron also contains other interesting chemical elements:

Magnesium

(Mg)

7 atoms

The binding sites of Potassium atom in the Crystal Structure of A Self-Spliced Group II Intron (pdb code 3bwp). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 2 binding sites of Potassium where determined in the Crystal Structure of A Self-Spliced Group II Intron, PDB code: 3bwp:
Jump to Potassium binding site number: 1; 2;

Potassium binding site 1 out of 2 in the Crystal Structure of A Self-Spliced Group II Intron


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Crystal Structure of A Self-Spliced Group II Intron within 5.0Å range: probe atom residue distance (Å) B Occ A:K420 b:80.7 occ:1.00 O6 A:G5 2.8 49.2 1.0 OP2 A:A376 3.0 50.1 1.0 O4 A:U4 3.4 62.5 1.0 C5' A:A376 3.7 49.0 1.0 C6 A:G5 3.8 47.3 1.0 O4' A:A376 3.9 50.9 1.0 N1 A:G5 4.0 45.2 1.0 C4 A:U4 4.2 59.1 1.0 P A:A376 4.2 48.4 1.0 C4' A:A376 4.2 50.4 1.0 C5 A:U4 4.3 58.0 1.0 O5' A:A376 4.4 47.2 1.0 P A:G3 4.4 74.0 1.0 O3' A:U375 4.5 48.7 1.0 OP2 A:G3 4.7 76.0 1.0

Potassium binding site 2 out of 2 in the Crystal Structure of A Self-Spliced Group II Intron


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Crystal Structure of A Self-Spliced Group II Intron within 5.0Å range: probe atom residue distance (Å) B Occ A:K421 b:70.9 occ:1.00 OP2 A:A67 2.6 55.4 1.0 N7 A:G68 2.8 44.0 1.0 O6 A:G68 3.7 46.2 1.0 C5 A:G68 3.7 44.8 1.0 P A:A67 3.7 52.5 1.0 C8 A:G68 3.8 45.4 1.0 C6 A:G68 4.1 44.5 1.0 O3' A:U66 4.1 52.9 1.0 C3' A:U66 4.1 52.6 1.0 O5' A:U66 4.2 59.8 1.0 OP1 A:U65 4.2 53.5 1.0 N1 A:A120 4.3 40.9 1.0 OP1 A:A67 4.4 54.2 1.0 C2 A:A120 4.8 42.9 1.0 C5' A:U66 4.9 55.3 1.0 C4 A:G68 4.9 45.2 1.0 N9 A:G68 4.9 47.2 1.0 O5' A:A67 5.0 51.4 1.0

N.Toor, K.S.Keating, S.D.Taylor, A.M.Pyle. Crystal Structure of A Self-Spliced Group II Intron Science V. 320 77 2008.
ISSN: ISSN 0036-8075
PubMed: 18388288
DOI: 10.1126/SCIENCE.1153803