Potassium in PDB 3f4e: Crystal Structure of the Fmn Riboswitch Bound to Fmn, Split Rna.

The structure of Crystal Structure of the Fmn Riboswitch Bound to Fmn, Split Rna., PDB code: 3f4e was solved by A.A.Serganov, L.Huang, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	20.00 / 3.05
Space group	P 31 2 1
Cell size a, b, c (Å), α, β, γ (°)	71.471, 71.471, 140.554, 90.00, 90.00, 120.00
R / Rfree (%)	20 / 23.2

The structure of Crystal Structure of the Fmn Riboswitch Bound to Fmn, Split Rna. also contains other interesting chemical elements:

Magnesium

(Mg)

13 atoms

The binding sites of Potassium atom in the Crystal Structure of the Fmn Riboswitch Bound to Fmn, Split Rna. (pdb code 3f4e). 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 the Fmn Riboswitch Bound to Fmn, Split Rna., PDB code: 3f4e:

Potassium binding site 1 out of 1 in the Crystal Structure of the Fmn Riboswitch Bound to Fmn, Split Rna.


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 the Fmn Riboswitch Bound to Fmn, Split Rna. within 5.0Å range: probe atom residue distance (Å) B Occ X:K300 b:98.4 occ:1.00 O4 X:U37 3.8 74.3 1.0 O6 X:G36 3.9 65.0 1.0 O6 X:G35 3.9 67.2 1.0 N7 X:G36 4.2 66.6 1.0 C2' X:A40 4.2 64.3 1.0 OP2 X:A40 4.2 65.6 1.0 N7 X:G35 4.3 67.5 1.0 O2' X:A40 4.3 64.7 1.0 C6 X:G35 4.6 66.8 1.0 C6 X:G36 4.7 66.3 1.0 C5 X:G35 4.8 66.5 1.0 C5 X:G36 4.8 66.4 1.0 C8 X:A40 4.9 64.6 1.0 C4 X:U37 4.9 74.0 1.0 C3' X:A40 5.0 64.8 1.0

A.Serganov, L.Huang, D.J.Patel. Coenzyme Recognition and Gene Regulation By A Flavin Mononucleotide Riboswitch. Nature V. 458 233 2009.
ISSN: ISSN 0028-0836
PubMed: 19169240
DOI: 10.1038/NATURE07642