Potassium in PDB 1c7j: Pnb Esterase 56C8

The structure of Pnb Esterase 56C8, PDB code: 1c7j was solved by B.Spiller, A.Gershenson, F.Arnold, R.C.Stevens, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	25.00 / 1.60
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	67.507, 81.833, 98.837, 90.00, 90.00, 90.00
R / Rfree (%)	21.4 / 22.8

The binding sites of Potassium atom in the Pnb Esterase 56C8 (pdb code 1c7j). 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 Pnb Esterase 56C8, PDB code: 1c7j:

Potassium binding site 1 out of 1 in the Pnb Esterase 56C8


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Pnb Esterase 56C8 within 5.0Å range: probe atom residue distance (Å) B Occ A:K500 b:7.2 occ:1.00 N A:HIS3 2.3 16.8 1.0 ND1 A:HIS3 2.3 15.8 1.0 N A:THR2 2.4 17.0 1.0 C A:THR2 3.1 16.5 1.0 CA A:THR2 3.2 16.7 1.0 CG A:HIS3 3.3 16.3 1.0 CE1 A:HIS3 3.3 15.9 1.0 CA A:HIS3 3.3 16.6 1.0 CB A:HIS3 3.5 16.3 1.0 N A:GLN4 3.9 17.0 1.0 O A:HOH696 4.0 24.9 1.0 C A:HIS3 4.1 16.8 1.0 O A:THR2 4.3 17.5 1.0 NE2 A:HIS3 4.4 16.2 1.0 CD2 A:HIS3 4.4 15.8 1.0 CB A:THR2 4.4 16.4 1.0 OG1 A:THR2 4.5 16.1 1.0

B.Spiller, A.Gershenson, F.H.Arnold, R.C.Stevens. A Structural View of Evolutionary Divergence. Proc.Natl.Acad.Sci.Usa V. 96 12305 1999.
ISSN: ISSN 0027-8424
PubMed: 10535917
DOI: 10.1073/PNAS.96.22.12305