Potassium in PDB 2f1h: Recombinase in Complex with Amp-Pnp and Potassium

The structure of Recombinase in Complex with Amp-Pnp and Potassium, PDB code: 2f1h was solved by X.Qian, Y.He, Y.Wu, Y.Luo, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	20.00 / 2.70
Space group	P 61
Cell size a, b, c (Å), α, β, γ (°)	84.453, 84.453, 105.484, 90.00, 90.00, 120.00
R / Rfree (%)	22.7 / 29.7

The structure of Recombinase in Complex with Amp-Pnp and Potassium also contains other interesting chemical elements:

Magnesium

(Mg)

2 atoms

The binding sites of Potassium atom in the Recombinase in Complex with Amp-Pnp and Potassium (pdb code 2f1h). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 2 binding sites of Potassium where determined in the Recombinase in Complex with Amp-Pnp and Potassium, PDB code: 2f1h:
Jump to Potassium binding site number: 1; 2;

Potassium binding site 1 out of 2 in the Recombinase in Complex with Amp-Pnp and Potassium


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Recombinase in Complex with Amp-Pnp and Potassium within 5.0Å range: probe atom residue distance (Å) B Occ A:K503 b:20.6 occ:1.00 O2G A:ANP401 3.5 26.8 1.0 O3G A:ANP401 3.7 26.4 1.0 PG A:ANP401 4.2 24.4 1.0 K A:K504 4.3 40.4 1.0 CB A:PHE107 4.4 25.7 1.0 CD1 A:PHE107 4.6 26.0 1.0 N3B A:ANP401 4.8 25.1 1.0 N A:GLY108 4.8 24.4 1.0 CG A:PHE107 4.9 26.0 1.0

Potassium binding site 2 out of 2 in the Recombinase in Complex with Amp-Pnp and Potassium


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Recombinase in Complex with Amp-Pnp and Potassium within 5.0Å range: probe atom residue distance (Å) B Occ A:K504 b:40.4 occ:1.00 O2G A:ANP401 2.7 26.8 1.0 PG A:ANP401 3.7 24.4 1.0 MG A:MG501 3.8 14.0 1.0 O1G A:ANP401 3.8 27.2 1.0 OD2 A:ASP151 3.9 25.6 1.0 O3G A:ANP401 4.0 26.4 1.0 CG A:ASP151 4.2 24.3 1.0 CB A:ASP151 4.2 22.1 1.0 K A:K503 4.3 20.6 1.0 CG2 A:THR153 4.7 18.2 1.0 OD1 A:ASP151 5.0 24.4 1.0

X.Qian, Y.He, Y.Wu, Y.Luo. ASP302 Determines Potassium Dependence of A Rada Recombinase From Methanococcus Voltae. J.Mol.Biol. V. 360 537 2006.
ISSN: ISSN 0022-2836
PubMed: 16782126
DOI: 10.1016/J.JMB.2006.05.058