Potassium in PDB 1zzn: Crystal Structure of A Group I Intron/Two Exon Complex That Includes All Catalytic Metal Ion Ligands.

The structure of Crystal Structure of A Group I Intron/Two Exon Complex That Includes All Catalytic Metal Ion Ligands., PDB code: 1zzn was solved by M.R.Stahley, S.A.Strobel, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	33.04 / 3.37
Space group	P 41 2 2
Cell size a, b, c (Å), α, β, γ (°)	108.466, 108.466, 246.400, 90.00, 90.00, 90.00
R / Rfree (%)	26.9 / 30.7

The structure of Crystal Structure of A Group I Intron/Two Exon Complex That Includes All Catalytic Metal Ion Ligands. also contains other interesting chemical elements:

Magnesium

(Mg)

5 atoms

The binding sites of Potassium atom in the Crystal Structure of A Group I Intron/Two Exon Complex That Includes All Catalytic Metal Ion Ligands. (pdb code 1zzn). 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 A Group I Intron/Two Exon Complex That Includes All Catalytic Metal Ion Ligands., PDB code: 1zzn:

Potassium binding site 1 out of 1 in the Crystal Structure of A Group I Intron/Two Exon Complex That Includes All Catalytic Metal Ion Ligands.


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 A Group I Intron/Two Exon Complex That Includes All Catalytic Metal Ion Ligands. within 5.0Å range: probe atom residue distance (Å) B Occ B:K4 b:48.3 occ:1.00 OP2 B:A150 2.3 82.7 1.0 O6 B:G151 2.3 35.7 1.0 O2' B:A149 2.4 75.8 1.0 N7 B:G151 2.5 42.3 1.0 O6 B:G152 2.8 68.9 1.0 C6 B:G151 2.9 33.8 1.0 C5 B:G151 3.0 40.6 1.0 C2' B:A149 3.5 77.1 1.0 N4 B:C159 3.5 92.5 1.0 P B:A150 3.5 82.2 1.0 O4 B:U160 3.7 59.3 1.0 C6 B:G152 3.7 68.5 1.0 C8 B:G151 3.8 48.4 1.0 O5' B:A150 3.9 82.3 1.0 O3' B:A149 4.0 76.3 1.0 N7 B:A150 4.1 83.6 1.0 C3' B:A149 4.1 75.8 1.0 C8 B:A150 4.2 81.2 1.0 N1 B:G151 4.3 35.8 1.0 C4 B:G151 4.4 45.6 1.0 N1 B:G152 4.5 67.4 1.0 C4 B:U160 4.6 57.2 1.0 C5 B:G152 4.6 70.7 1.0 C4 B:C159 4.7 87.0 1.0 N9 B:G151 4.7 51.4 1.0 N3 B:U160 4.8 55.9 1.0 OP2 B:G151 4.8 69.9 1.0 C1' B:A149 4.8 70.4 1.0 OP1 B:A150 4.8 73.8 1.0 N7 B:G152 4.9 75.3 1.0

M.R.Stahley, S.A.Strobel. Structural Evidence For A Two-Metal-Ion Mechanism of Group I Intron Splicing. Science V. 309 1587 2005.
ISSN: ISSN 0036-8075
PubMed: 16141079
DOI: 10.1126/SCIENCE.1114994