Potassium in PDB 5dun: The Crystal Structure of Ome Substituted Twister Ribozyme

The structure of The Crystal Structure of Ome Substituted Twister Ribozyme, PDB code: 5dun was solved by A.Ren, D.J.Patel, R.Micura, K.R.Rajashankar, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	44.52 / 2.64
Space group	P 43 21 2
Cell size a, b, c (Å), α, β, γ (°)	46.819, 46.819, 143.751, 90.00, 90.00, 90.00
R / Rfree (%)	19.4 / 25.2

The structure of The Crystal Structure of Ome Substituted Twister Ribozyme also contains other interesting chemical elements:

Magnesium

(Mg)

8 atoms

The binding sites of Potassium atom in the The Crystal Structure of Ome Substituted Twister Ribozyme (pdb code 5dun). 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 The Crystal Structure of Ome Substituted Twister Ribozyme, PDB code: 5dun:

Potassium binding site 1 out of 1 in the The Crystal Structure of Ome Substituted Twister Ribozyme


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of The Crystal Structure of Ome Substituted Twister Ribozyme within 5.0Å range: probe atom residue distance (Å) B Occ A:K109 b:68.8 occ:1.00 O4 A:U24 2.8 47.8 1.0 C4 A:U24 3.8 46.4 1.0 O6 A:G25 3.9 39.1 1.0 C5 A:U24 4.1 46.9 1.0 N4 A:C14 4.6 32.5 1.0 N6 A:A15 4.7 29.7 1.0 N7 A:G23 4.8 56.1 1.0 O6 A:G36 4.9 40.1 1.0 C6 A:G25 4.9 34.7 1.0

M.Kosutic, S.Neuner, A.Ren, S.Flur, C.Wunderlich, E.Mairhofer, N.Vusurovic, J.Seikowski, K.Breuker, C.Hobartner, D.J.Patel, C.Kreutz, R.Micura. A Mini-Twister Variant and Impact of Residues/Cations on the Phosphodiester Cleavage of This Ribozyme Class. Angew.Chem.Int.Ed.Engl. V. 54 15128 2015.
ISSN: ESSN 1521-3773
PubMed: 26473980
DOI: 10.1002/ANIE.201506601