Potassium in PDB 2g4n: Anomalous Substructure of Alpha-Lactalbumin

The structure of Anomalous Substructure of Alpha-Lactalbumin, PDB code: 2g4n 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 / 2.30
Space group	P 21 21 2
Cell size a, b, c (Å), α, β, γ (°)	68.430, 104.800, 119.110, 90.00, 90.00, 90.00
R / Rfree (%)	29.6 / 35.9

The structure of Anomalous Substructure of Alpha-Lactalbumin also contains other interesting chemical elements:

Calcium

(Ca)

6 atoms

The binding sites of Potassium atom in the Anomalous Substructure of Alpha-Lactalbumin (pdb code 2g4n). 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 Alpha-Lactalbumin, PDB code: 2g4n:
Jump to Potassium binding site number: 1; 2;

Potassium binding site 1 out of 2 in the Anomalous Substructure of Alpha-Lactalbumin


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 Alpha-Lactalbumin within 5.0Å range: probe atom residue distance (Å) B Occ A:K208 b:54.7 occ:0.37 OE1 A:GLN2 2.4 60.4 1.0 O A:GLY35 2.7 35.4 1.0 CD A:GLN2 3.2 45.1 1.0 C A:GLY35 3.7 37.2 1.0 NE2 A:GLN2 3.8 50.4 1.0 CG A:GLN2 4.0 47.1 1.0 CA A:GLY35 4.1 37.8 1.0 CB A:ASP37 4.7 36.0 1.0 O A:SER34 4.7 38.8 1.0 N A:ASP37 4.8 36.2 1.0 N A:TYR36 4.9 36.3 1.0

Potassium binding site 2 out of 2 in the Anomalous Substructure of Alpha-Lactalbumin


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 Alpha-Lactalbumin within 5.0Å range: probe atom residue distance (Å) B Occ B:K207 b:60.9 occ:0.40 OE1 B:GLN2 2.5 67.3 1.0 O B:GLY35 2.8 36.3 1.0 CD B:GLN2 3.1 54.2 1.0 NE2 B:GLN2 3.3 47.1 1.0 C B:GLY35 3.8 38.1 1.0 CA B:GLY35 4.2 39.2 1.0 CG B:GLN2 4.2 48.9 1.0 CB B:ASP37 4.7 38.1 1.0 O B:SER34 4.7 39.0 1.0 N B:ASP37 4.8 37.7 1.0 N B:TYR36 4.9 38.4 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