Potassium in PDB 4enc: Crystal Structure of Fluoride Riboswitch

The structure of Crystal Structure of Fluoride Riboswitch, PDB code: 4enc was solved by A.M.Ren, K.R.Rajashankar, D.J.Patel, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	28.50 / 2.27
Space group	P 21 21 2
Cell size a, b, c (Å), α, β, γ (°)	57.010, 75.223, 42.905, 90.00, 90.00, 90.00
R / Rfree (%)	22 / 25.2

The structure of Crystal Structure of Fluoride Riboswitch also contains other interesting chemical elements:

Fluorine	(F)	1 atom
Magnesium	(Mg)	5 atoms

The binding sites of Potassium atom in the Crystal Structure of Fluoride Riboswitch (pdb code 4enc). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total only one binding site of Potassium was determined in the Crystal Structure of Fluoride Riboswitch, PDB code: 4enc:

Potassium binding site 1 out of 1 in the Crystal Structure of Fluoride Riboswitch


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 Fluoride Riboswitch within 5.0Å range: probe atom residue distance (Å) B Occ A:K107 b:75.4 occ:1.00 OP1 A:U7 2.3 38.5 1.0 OP1 A:G5 2.5 67.8 1.0 O A:HOH206 2.6 46.6 1.0 O A:HOH204 2.7 36.6 1.0 OP1 A:A6 2.8 48.0 1.0 O3' A:A6 3.2 45.4 1.0 P A:U7 3.4 46.6 1.0 MG A:MG104 3.5 38.1 1.0 P A:G5 3.6 52.0 1.0 MG A:MG101 3.6 42.9 1.0 O5' A:A6 3.6 45.6 1.0 P A:A6 3.7 48.5 1.0 OP2 A:G5 4.0 55.8 1.0 F A:F106 4.0 37.5 1.0 OP2 A:G8 4.1 53.6 1.0 O A:HOH207 4.1 48.5 1.0 OP1 A:G8 4.1 52.1 1.0 O5' A:G5 4.3 58.9 1.0 OP2 A:A6 4.4 43.6 1.0 OP2 A:U7 4.4 39.3 1.0 O5' A:U7 4.4 53.3 1.0 C5' A:U7 4.4 44.8 1.0 C3' A:A6 4.5 50.6 1.0 C5' A:G5 4.5 54.5 1.0 P A:G8 4.5 55.0 1.0 C4' A:A6 4.8 58.0 1.0 O3' A:U7 4.8 52.7 1.0 C5' A:A6 4.8 56.6 1.0 O3' A:C4 5.0 58.6 1.0 MG A:MG103 5.0 54.3 1.0

A.Ren, K.R.Rajashankar, D.J.Patel. Fluoride Ion Encapsulation By MG2+ Ions and Phosphates in A Fluoride Riboswitch. Nature V. 486 85 2012.
ISSN: ISSN 0028-0836
PubMed: 22678284
DOI: 10.1038/NATURE11152