Strontium in PDB 7mlw: Burkholderia Sp. TJI49 Guanidine-I Riboswitch

The structure of Burkholderia Sp. TJI49 Guanidine-I Riboswitch, PDB code: 7mlw was solved by R.J.Trachman, A.R.Ferre-D'amare, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	6.99 / 2.70
Space group	P 32 2 1
Cell size a, b, c (Å), α, β, γ (°)	51.703, 51.703, 266.728, 90, 90, 120
R / Rfree (%)	21.8 / 27

The structure of Burkholderia Sp. TJI49 Guanidine-I Riboswitch also contains other interesting chemical elements:

Potassium	(K)	3 atoms
Magnesium	(Mg)	3 atoms

The binding sites of Strontium atom in the Burkholderia Sp. TJI49 Guanidine-I Riboswitch (pdb code 7mlw). This binding sites where shown within 5.0 Angstroms radius around Strontium atom.
In total 2 binding sites of Strontium where determined in the Burkholderia Sp. TJI49 Guanidine-I Riboswitch, PDB code: 7mlw:
Jump to Strontium binding site number: 1; 2;

Strontium binding site 1 out of 2 in the Burkholderia Sp. TJI49 Guanidine-I Riboswitch


Mono view


Stereo pair view

A full contact list of Strontium with other atoms in the Sr binding site number 1 of Burkholderia Sp. TJI49 Guanidine-I Riboswitch within 5.0Å range: probe atom residue distance (Å) B Occ F:Sr206 b:116.6 occ:1.00 O F:HOH307 2.6 52.7 1.0 OP1 F:G47 4.1 52.7 1.0 N7 F:G10 4.3 45.2 1.0 N7 F:G11 4.4 45.3 1.0 O6 F:G11 4.4 56.0 1.0 OP2 F:G47 4.5 51.4 1.0 OP2 F:A9 4.5 51.5 1.0 O6 F:G10 4.6 55.0 1.0 P F:G47 4.8 46.0 1.0 OP2 F:G48 5.0 55.3 1.0

Strontium binding site 2 out of 2 in the Burkholderia Sp. TJI49 Guanidine-I Riboswitch


Mono view


Stereo pair view

A full contact list of Strontium with other atoms in the Sr binding site number 2 of Burkholderia Sp. TJI49 Guanidine-I Riboswitch within 5.0Å range: probe atom residue distance (Å) B Occ F:Sr207 b:100.1 occ:1.00 O4 F:U13 2.6 56.8 1.0 O6 F:G12 2.7 61.6 1.0 N7 F:G47 3.1 52.6 1.0 N2 F:G44 3.6 52.6 1.0 C8 F:G47 3.7 58.3 1.0 C6 F:G12 3.7 56.4 1.0 C4 F:U13 3.7 53.3 1.0 C5 F:G47 4.0 59.7 1.0 C2 F:G44 4.1 54.5 1.0 N3 F:U13 4.1 57.6 1.0 N1 F:G44 4.2 56.4 1.0 O6 F:G47 4.4 62.8 1.0 C5 F:G12 4.4 51.5 1.0 C6 F:G47 4.5 63.4 1.0 N7 F:G12 4.5 45.8 1.0 OP2 F:U46 4.6 56.9 1.0 N1 F:G12 4.6 55.0 1.0 N9 F:G47 4.7 60.0 1.0 OP2 F:G47 4.8 51.4 1.0 N7 F:G48 4.9 69.9 1.0 C4 F:G47 4.9 64.5 1.0 N3 F:G44 4.9 50.2 1.0 C5 F:U13 5.0 52.0 1.0

R.J.Trachman 3Rd, A.R.Ferre-D'amare. An Uncommon [K + (Mg 2+ ) 2 ] Metal Ion Triad Imparts Stability and Selectivity to the Guanidine-I Riboswitch. Rna V. 27 1257 2021.
ISSN: ESSN 1469-9001
PubMed: 34257148
DOI: 10.1261/RNA.078824.121