Potassium in PDB 5fkf: Sam-I Riboswitch Bearing the H. Marismortui Kt-7 Variant 3BN Is Uc

The structure of Sam-I Riboswitch Bearing the H. Marismortui Kt-7 Variant 3BN Is Uc, PDB code: 5fkf was solved by L.Huang, D.M.J.Lilley, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	57.410 / 2.80
Space group	P 43 21 2
Cell size a, b, c (Å), α, β, γ (°)	61.810, 61.810, 154.940, 90.00, 90.00, 90.00
R / Rfree (%)	20.45 / 25.75

The structure of Sam-I Riboswitch Bearing the H. Marismortui Kt-7 Variant 3BN Is Uc also contains other interesting chemical elements:

Barium	(Ba)	12 atoms
Sodium	(Na)	2 atoms

The binding sites of Potassium atom in the Sam-I Riboswitch Bearing the H. Marismortui Kt-7 Variant 3BN Is Uc (pdb code 5fkf). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 2 binding sites of Potassium where determined in the Sam-I Riboswitch Bearing the H. Marismortui Kt-7 Variant 3BN Is Uc, PDB code: 5fkf:
Jump to Potassium binding site number: 1; 2;

Potassium binding site 1 out of 2 in the Sam-I Riboswitch Bearing the H. Marismortui Kt-7 Variant 3BN Is Uc


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Sam-I Riboswitch Bearing the H. Marismortui Kt-7 Variant 3BN Is Uc within 5.0Å range: probe atom residue distance (Å) B Occ A:K1106 b:99.2 occ:1.00 O6 A:G89 2.7 67.2 1.0 O4 A:U88 2.9 46.6 1.0 O4 A:U5 3.1 80.8 1.0 O4 A:U4 3.5 80.7 1.0 C4 A:U88 3.8 43.2 1.0 C6 A:G89 3.8 57.1 1.0 N6 A:A6 4.0 51.6 1.0 N6 A:A90 4.0 46.8 1.0 C4 A:U5 4.2 55.1 1.0 C5 A:U88 4.4 57.0 1.0 N7 A:G89 4.4 44.5 1.0 C4 A:U4 4.5 69.8 1.0 C5 A:G89 4.5 47.9 1.0 N3 A:U5 4.5 48.8 1.0 N3 A:U88 4.7 44.2 1.0 C6 A:A90 4.9 46.7 1.0 N1 A:G89 5.0 65.3 1.0 C6 A:A6 5.0 54.3 1.0

Potassium binding site 2 out of 2 in the Sam-I Riboswitch Bearing the H. Marismortui Kt-7 Variant 3BN Is Uc


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Sam-I Riboswitch Bearing the H. Marismortui Kt-7 Variant 3BN Is Uc within 5.0Å range: probe atom residue distance (Å) B Occ A:K1107 b:84.4 occ:1.00 O6 A:G79 2.7 75.4 1.0 O4 A:U80 2.9 55.5 1.0 O6 A:G71 3.4 75.1 1.0 N6 A:A70 3.5 87.7 1.0 N4 A:C72 3.7 92.8 1.0 C6 A:G79 3.9 68.5 1.0 C4 A:U80 4.0 60.0 1.0 C6 A:A70 4.3 97.4 1.0 N3 A:U80 4.4 76.5 1.0 C6 A:G71 4.5 82.5 1.0 C5 A:G79 4.6 72.8 1.0 N7 A:G79 4.7 57.0 1.0 O4 A:U81 4.8 83.6 1.0 C5 A:A70 4.8 1.0 1.0 N7 A:A70 4.8 0.1 1.0 N1 A:G79 4.9 59.5 1.0 N7 A:G71 4.9 99.4 1.0 C4 A:C72 4.9 72.7 1.0

L.Huang, J.Wang, D.M.J.Lilley. A Critical Base Pair in K-Turns Determines the Conformational Class Adopted, and Correlates with Biological Function. Nucleic Acids Res. V. 44 5390 2016.
ISSN: ISSN 0305-1048
PubMed: 27016741
DOI: 10.1093/NAR/GKW201