Potassium in PDB 1lk0: Disulfide Intermediate of C89L Arsenate Reductase From PI258

All present enzymatic activity of Disulfide Intermediate of C89L Arsenate Reductase From PI258:
1.97.1.5;

The structure of Disulfide Intermediate of C89L Arsenate Reductase From PI258, PDB code: 1lk0 was solved by J.Messens, J.C.Martins, K.Van Belle, E.Brosens, A.Desmyter, M.Degieter, J.M.Wieruszeski, R.Willem, L.Wyns, I.Zegers, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	27.80 / 1.60
Space group	P 1 21 1
Cell size a, b, c (Å), α, β, γ (°)	61.710, 35.480, 62.980, 90.00, 118.01, 90.00
R / Rfree (%)	20.3 / 23.4

The structure of Disulfide Intermediate of C89L Arsenate Reductase From PI258 also contains other interesting chemical elements:

Chlorine

(Cl)

2 atoms

The binding sites of Potassium atom in the Disulfide Intermediate of C89L Arsenate Reductase From PI258 (pdb code 1lk0). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 2 binding sites of Potassium where determined in the Disulfide Intermediate of C89L Arsenate Reductase From PI258, PDB code: 1lk0:
Jump to Potassium binding site number: 1; 2;

Potassium binding site 1 out of 2 in the Disulfide Intermediate of C89L Arsenate Reductase From PI258


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Disulfide Intermediate of C89L Arsenate Reductase From PI258 within 5.0Å range: probe atom residue distance (Å) B Occ A:K263 b:11.7 occ:1.00 O A:THR63 2.8 13.3 1.0 OD2 A:ASP65 2.8 13.7 1.0 O A:SER36 2.8 8.0 1.0 O A:HOH268 2.9 11.2 1.0 OG A:SER36 3.0 8.0 1.0 OD1 A:ASN13 3.0 8.5 1.0 OE2 A:GLU21 3.0 10.6 1.0 O A:HOH282 3.0 15.3 1.0 CG A:ASP65 3.6 17.3 1.0 C A:SER36 3.7 7.6 1.0 CG A:ASN13 3.9 8.4 1.0 NE2 A:GLN18 3.9 11.3 1.0 C A:THR63 3.9 14.0 1.0 CD A:GLU21 4.0 10.5 1.0 ND2 A:ASN13 4.0 6.7 1.0 CB A:SER36 4.1 9.5 1.0 N A:SER36 4.1 7.9 1.0 CB A:ASP65 4.1 13.1 1.0 CA A:SER36 4.1 7.6 1.0 N A:ASP65 4.2 12.6 1.0 O A:HOH348 4.2 25.4 1.0 O A:HOH335 4.2 21.8 1.0 OE1 A:GLU21 4.3 12.4 1.0 OE1 A:GLN18 4.4 12.4 1.0 CD A:GLN18 4.5 11.9 1.0 OG1 A:THR63 4.5 15.0 1.0 OD1 A:ASP65 4.5 22.1 1.0 N A:THR63 4.6 14.2 1.0 N A:ALA37 4.7 6.2 1.0 CA A:THR63 4.8 14.0 1.0 CA A:ASP65 4.8 13.2 1.0 N A:SER64 4.8 13.1 1.0 CA A:SER64 4.9 13.8 1.0

Potassium binding site 2 out of 2 in the Disulfide Intermediate of C89L Arsenate Reductase From PI258


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Disulfide Intermediate of C89L Arsenate Reductase From PI258 within 5.0Å range: probe atom residue distance (Å) B Occ B:K264 b:15.1 occ:1.00 O B:SER36 2.7 9.5 1.0 OE2 B:GLU21 2.7 11.8 1.0 O B:THR63 2.9 12.9 1.0 OD2 B:ASP65 2.9 12.8 1.0 O B:HOH275 2.9 14.5 1.0 OG B:SER36 3.0 9.2 1.0 OD1 B:ASN13 3.0 9.6 1.0 O B:HOH281 3.1 15.5 1.0 CG B:ASP65 3.5 12.6 1.0 C B:SER36 3.6 9.7 1.0 CD B:GLU21 3.8 12.0 1.0 NE2 B:GLN18 3.8 10.0 1.0 CG B:ASN13 3.9 7.9 1.0 CB B:ASP65 4.0 10.4 1.0 C B:THR63 4.1 11.8 1.0 CB B:SER36 4.1 9.0 1.0 N B:SER36 4.1 9.2 1.0 CA B:SER36 4.1 9.0 1.0 O B:HOH296 4.1 17.6 1.0 ND2 B:ASN13 4.1 9.7 1.0 OE1 B:GLU21 4.1 12.8 1.0 N B:ASP65 4.2 12.4 1.0 O B:HOH327 4.2 22.7 1.0 OD1 B:ASP65 4.3 15.6 1.0 OE1 B:GLN18 4.4 11.8 1.0 CD B:GLN18 4.5 11.7 1.0 N B:THR63 4.7 13.9 1.0 N B:ALA37 4.7 9.7 1.0 CA B:ASP65 4.8 11.4 1.0 OG1 B:THR63 4.8 16.5 1.0 CA B:SER64 4.9 12.9 1.0 N B:SER64 4.9 14.4 1.0 CA B:THR63 5.0 14.8 1.0 C B:SER64 5.0 12.9 1.0

J.Messens, J.C.Martins, K.Van Belle, E.Brosens, A.Desmyter, M.De Gieter, J.M.Wieruszeski, R.Willem, L.Wyns, I.Zegers. All Intermediates of the Arsenate Reductase Mechanism, Including An Intramolecular Dynamic Disulfide Cascade. Proc.Natl.Acad.Sci.Usa V. 99 8506 2002.
ISSN: ISSN 0027-8424
PubMed: 12072565
DOI: 10.1073/PNAS.132142799