Potassium in PDB 4jf6: Structure of Oxa-23 at pH 7.0

All present enzymatic activity of Structure of Oxa-23 at pH 7.0:
3.5.2.6;

The structure of Structure of Oxa-23 at pH 7.0, PDB code: 4jf6 was solved by C.A.Smith, S.B.Vakulenko, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	38.80 / 2.50
Space group	I 4 2 2
Cell size a, b, c (Å), α, β, γ (°)	173.662, 173.662, 81.449, 90.00, 90.00, 90.00
R / Rfree (%)	22.7 / 28.5

The structure of Structure of Oxa-23 at pH 7.0 also contains other interesting chemical elements:

Chlorine

(Cl)

4 atoms

The binding sites of Potassium atom in the Structure of Oxa-23 at pH 7.0 (pdb code 4jf6). 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 Structure of Oxa-23 at pH 7.0, PDB code: 4jf6:

Potassium binding site 1 out of 1 in the Structure of Oxa-23 at pH 7.0


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Structure of Oxa-23 at pH 7.0 within 5.0Å range: probe atom residue distance (Å) B Occ A:K301 b:35.2 occ:0.50 NE2 A:HIS41 2.1 47.4 1.0 OD2 A:ASP45 2.1 30.6 1.0 OD1 A:ASP45 2.3 56.8 1.0 CG A:ASP45 2.5 57.4 1.0 CD2 A:HIS41 3.0 47.1 1.0 CE1 A:HIS41 3.1 41.3 1.0 CB A:ASP45 4.1 48.6 1.0 CG A:HIS41 4.2 48.6 1.0 ND1 A:HIS41 4.2 47.2 1.0 CB A:ASN66 4.4 52.4 1.0 CA A:ASP45 4.9 51.6 1.0

C.A.Smith, N.T.Antunes, N.K.Stewart, M.Toth, M.Kumarasiri, M.Chang, S.Mobashery, S.B.Vakulenko. Structural Basis For Carbapenemase Activity of the Oxa-23 Beta-Lactamase From Acinetobacter Baumannii. Chem.Biol. V. 20 1107 2013.
ISSN: ISSN 1074-5521
PubMed: 24012371
DOI: 10.1016/J.CHEMBIOL.2013.07.015