Potassium in PDB 5fk5: Sam-I Riboswitch Bearing the H. Marismortui Kt-7 Variant 3BN Is Aa

The structure of Sam-I Riboswitch Bearing the H. Marismortui Kt-7 Variant 3BN Is Aa, PDB code: 5fk5 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)	28.988 / 3.32
Space group	P 43 21 2
Cell size a, b, c (Å), α, β, γ (°)	61.784, 61.784, 154.980, 90.00, 90.00, 90.00
R / Rfree (%)	19.9 / 24.88

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

Barium

(Ba)

12 atoms

The binding sites of Potassium atom in the Sam-I Riboswitch Bearing the H. Marismortui Kt-7 Variant 3BN Is Aa (pdb code 5fk5). 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 Aa, PDB code: 5fk5:
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 Aa


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 Aa within 5.0Å range: probe atom residue distance (Å) B Occ A:K1104 b:0.4 occ:1.00 O6 A:G82 3.6 1.0 1.0 O4 A:U81 3.7 0.1 1.0 OP1 A:U67 4.0 0.4 1.0 N6 A:A83 4.1 0.7 1.0 C4 A:U81 4.4 0.6 1.0 N7 A:G82 4.4 0.5 1.0 C6 A:G82 4.5 0.9 1.0 C5 A:U81 4.6 0.8 1.0 OP2 A:U67 4.7 98.0 1.0 P A:U67 4.8 0.7 1.0 C5 A:G82 4.9 0.5 1.0

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


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 Aa within 5.0Å range: probe atom residue distance (Å) B Occ A:K1105 b:94.2 occ:1.00 O4 A:U5 3.1 90.9 1.0 O4 A:U4 3.3 90.2 1.0 O6 A:G89 3.3 79.3 1.0 O4 A:U88 3.4 94.9 1.0 N6 A:A90 3.9 87.7 1.0 C4 A:U5 4.3 90.0 1.0 C4 A:U4 4.3 91.9 1.0 C4 A:U88 4.3 90.2 1.0 N6 A:A6 4.4 70.8 1.0 C6 A:G89 4.5 74.0 1.0 N3 A:U5 4.9 98.8 1.0 C5 A:U88 4.9 67.2 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