Potassium in PDB 5fk3: Sam-I Riboswitch Bearing the H. Marismortui Kt-7 Variant 3BN Is Cc

The structure of Sam-I Riboswitch Bearing the H. Marismortui Kt-7 Variant 3BN Is Cc, PDB code: 5fk3 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)	57.711 / 2.50
Space group	P 43 21 2
Cell size a, b, c (Å), α, β, γ (°)	62.262, 62.262, 153.780, 90.00, 90.00, 90.00
R / Rfree (%)	20.63 / 26.78

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

Barium

(Ba)

15 atoms

The binding sites of Potassium atom in the Sam-I Riboswitch Bearing the H. Marismortui Kt-7 Variant 3BN Is Cc (pdb code 5fk3). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 3 binding sites of Potassium where determined in the Sam-I Riboswitch Bearing the H. Marismortui Kt-7 Variant 3BN Is Cc, PDB code: 5fk3:
Jump to Potassium binding site number: 1; 2; 3;

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


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 Cc within 5.0Å range: probe atom residue distance (Å) B Occ A:K1111 b:0.2 occ:1.00 O4 A:U88 2.9 61.7 1.0 O6 A:G89 2.9 78.4 1.0 O4 A:U5 3.2 90.4 1.0 O4 A:U4 3.6 0.6 1.0 C4 A:U88 3.8 53.6 1.0 N6 A:A90 4.0 56.2 1.0 N6 A:A6 4.0 64.0 1.0 C6 A:G89 4.1 80.3 1.0 C4 A:U5 4.3 76.1 1.0 C5 A:U88 4.4 62.9 1.0 N7 A:G89 4.6 66.1 1.0 C4 A:U4 4.6 95.4 1.0 N3 A:U5 4.6 55.3 1.0 N3 A:U88 4.7 53.7 1.0 C5 A:G89 4.7 68.2 1.0

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


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 Cc within 5.0Å range: probe atom residue distance (Å) B Occ A:K1112 b:0.9 occ:1.00 O6 A:G79 3.3 0.2 1.0 O4 A:U80 3.4 70.7 1.0 N6 A:A70 3.6 83.9 1.0 O6 A:G71 3.6 90.1 1.0 N4 A:C72 4.1 1.0 1.0 C6 A:A70 4.3 93.4 1.0 C4 A:U80 4.4 83.2 1.0 C6 A:G79 4.4 95.5 1.0 N7 A:A70 4.6 88.5 1.0 C5 A:A70 4.7 85.7 1.0 C6 A:G71 4.7 95.3 1.0 N3 A:U80 4.8 0.6 1.0 OP1 A:G68 5.0 0.7 1.0

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


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 3 of Sam-I Riboswitch Bearing the H. Marismortui Kt-7 Variant 3BN Is Cc within 5.0Å range: probe atom residue distance (Å) B Occ A:K1113 b:0.8 occ:1.00 OP2 A:A62 2.8 0.9 1.0 OP2 A:C65 3.0 77.7 1.0 OP2 A:U64 3.3 87.7 1.0 O5' A:U64 3.5 77.6 1.0 P A:U64 4.1 86.8 1.0 P A:A62 4.2 0.1 1.0 P A:C65 4.5 68.4 1.0 O5' A:A62 4.7 85.6 1.0 C5' A:U64 4.7 54.7 1.0 C5' A:C65 4.7 59.2 1.0 OP1 A:C60 4.8 87.5 1.0 C4' A:U64 4.8 58.6 1.0 OP1 A:A62 4.9 0.6 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