Potassium in PDB 6e81: Crystal Structure of the Corn Aptamer in Complex with Tht

The structure of Crystal Structure of the Corn Aptamer in Complex with Tht, PDB code: 6e81 was solved by L.Sjekloca, A.R.Ferre-D'amare, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	38.27 / 2.72
Space group	H 3 2
Cell size a, b, c (Å), α, β, γ (°)	131.404, 131.404, 40.632, 90.00, 90.00, 120.00
R / Rfree (%)	24.8 / 25.9

The binding sites of Potassium atom in the Crystal Structure of the Corn Aptamer in Complex with Tht (pdb code 6e81). 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 Corn Aptamer in Complex with Tht, PDB code: 6e81:

Potassium binding site 1 out of 1 in the Crystal Structure of the Corn Aptamer in Complex with Tht


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 Corn Aptamer in Complex with Tht within 5.0Å range: probe atom residue distance (Å) B Occ A:K102 b:78.0 occ:1.00 O6 A:G16 2.6 76.2 1.0 O6 A:G25 2.6 67.9 1.0 O6 A:G15 2.7 0.6 1.0 O6 A:G12 2.8 71.3 1.0 O6 A:G23 2.8 78.7 1.0 O6 A:G22 2.8 73.1 1.0 O6 A:G26 2.8 81.9 1.0 O6 A:G13 3.0 98.3 1.0 C6 A:G16 3.3 82.3 1.0 C6 A:G12 3.4 77.0 1.0 C6 A:G25 3.5 74.2 1.0 N1 A:G16 3.5 74.0 1.0 N1 A:G13 3.5 85.7 1.0 C6 A:G23 3.6 68.1 1.0 N1 A:G12 3.6 84.5 1.0 C6 A:G13 3.6 87.0 1.0 C6 A:G22 3.7 76.8 1.0 N1 A:G25 3.7 68.9 1.0 C6 A:G26 3.7 76.3 1.0 N1 A:G22 3.8 65.0 1.0 C6 A:G15 3.8 83.0 1.0 N1 A:G23 3.9 66.8 1.0 N1 A:G26 4.0 79.7 1.0 N1 A:G15 4.2 84.8 1.0 C5 A:G12 4.5 82.5 1.0 C5 A:G16 4.6 83.1 1.0 C2 A:G13 4.7 80.7 1.0 C2 A:G16 4.7 74.1 1.0 C2 A:G12 4.8 91.5 1.0 C5 A:G25 4.8 70.6 1.0 C5 A:G23 4.8 66.5 1.0 C5 A:G26 5.0 77.4 1.0 C5 A:G13 5.0 84.8 1.0

L.Sjekloca, A.R.Ferre-D'amare. Binding Between G Quadruplexes at the Homodimer Interface of the Corn Rna Aptamer Strongly Activates Thioflavin T Fluorescence. Cell Chem Biol V. 26 1159 2019.
ISSN: ESSN 2451-9456
PubMed: 31178406
DOI: 10.1016/J.CHEMBIOL.2019.04.012