Potassium in PDB 2g4v: Anomalous Substructure of Proteinase K

All present enzymatic activity of Anomalous Substructure of Proteinase K:
3.4.21.64;

The structure of Anomalous Substructure of Proteinase K, PDB code: 2g4v was solved by C.Mueller-Dieckmann, M.S.Weiss, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	30.00 / 2.14
Space group	P 43 21 2
Cell size a, b, c (Å), α, β, γ (°)	67.780, 67.780, 101.880, 90.00, 90.00, 90.00
R / Rfree (%)	16.3 / 20.3

The structure of Anomalous Substructure of Proteinase K also contains other interesting chemical elements:

Chlorine	(Cl)	1 atom
Calcium	(Ca)	2 atoms

The binding sites of Potassium atom in the Anomalous Substructure of Proteinase K (pdb code 2g4v). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 2 binding sites of Potassium where determined in the Anomalous Substructure of Proteinase K, PDB code: 2g4v:
Jump to Potassium binding site number: 1; 2;

Potassium binding site 1 out of 2 in the Anomalous Substructure of Proteinase K


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Anomalous Substructure of Proteinase K within 5.0Å range: probe atom residue distance (Å) B Occ A:K282 b:2.6 occ:0.30 O A:HOH397 2.3 20.1 1.0 O A:ASN163 2.7 3.0 1.0 OH A:TYR195 2.9 8.4 1.0 CZ A:TYR195 3.8 6.8 1.0 C A:ASN163 3.9 5.5 1.0 CE2 A:TYR195 3.9 2.0 1.0 ND2 A:ASN163 4.0 2.6 1.0 CG A:ASN163 4.1 4.2 1.0 OD1 A:ASN163 4.3 6.5 1.0 CA A:ALA164 4.4 5.9 1.0 N A:ALA164 4.6 4.4 1.0 O A:HOH385 4.8 9.7 1.0 CB A:ASN163 4.9 4.8 1.0 CA A:ASN163 5.0 4.7 1.0

Potassium binding site 2 out of 2 in the Anomalous Substructure of Proteinase K


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Anomalous Substructure of Proteinase K within 5.0Å range: probe atom residue distance (Å) B Occ A:K283 b:11.4 occ:0.15 O A:LYS258 2.8 5.7 1.0 OD1 A:ASP260 3.4 16.2 1.0 C A:LYS258 4.1 6.8 1.0 CG A:ASP260 4.3 11.5 1.0 OD2 A:ASP260 4.6 19.3 1.0 N A:LYS258 4.9 6.4 1.0 CA A:GLY259 4.9 7.0 1.0 C A:GLY259 4.9 8.8 1.0 CA A:LYS258 4.9 7.1 1.0 N A:GLY259 5.0 5.9 1.0

C.Mueller-Dieckmann, S.Panjikar, A.Schmidt, S.Mueller, J.Kuper, A.Geerlof, M.Wilmanns, R.K.Singh, P.A.Tucker, M.S.Weiss. On the Routine Use of Soft X-Rays in Macromolecular Crystallography. Part IV. Efficient Determination of Anomalous Substructures in Biomacromolecules Using Longer X-Ray Wavelengths. Acta Crystallogr.,Sect.D V. 63 366 2007.
ISSN: ISSN 0907-4449
PubMed: 17327674
DOI: 10.1107/S0907444906055624