Potassium in PDB 1eu3: Crystal Structure of the Superantigen Smez-2 (Zinc Bound) From Streptococcus Pyogenes

The structure of Crystal Structure of the Superantigen Smez-2 (Zinc Bound) From Streptococcus Pyogenes, PDB code: 1eu3 was solved by V.L.Arcus, T.Proft, J.A.Sigrell, H.M.Baker, J.D.Fraser, E.N.Baker, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	37.05 / 1.68
Space group	C 1 2 1
Cell size a, b, c (Å), α, β, γ (°)	148.230, 39.960, 104.070, 90.00, 134.05, 90.00
R / Rfree (%)	20.7 / 23

The structure of Crystal Structure of the Superantigen Smez-2 (Zinc Bound) From Streptococcus Pyogenes also contains other interesting chemical elements:

Zinc

(Zn)

2 atoms

The binding sites of Potassium atom in the Crystal Structure of the Superantigen Smez-2 (Zinc Bound) From Streptococcus Pyogenes (pdb code 1eu3). 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 Crystal Structure of the Superantigen Smez-2 (Zinc Bound) From Streptococcus Pyogenes, PDB code: 1eu3:

Potassium binding site 1 out of 1 in the Crystal Structure of the Superantigen Smez-2 (Zinc Bound) From Streptococcus Pyogenes


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Crystal Structure of the Superantigen Smez-2 (Zinc Bound) From Streptococcus Pyogenes within 5.0Å range: probe atom residue distance (Å) B Occ A:K403 b:31.5 occ:1.00 O A:HOH870 2.8 37.9 1.0 O A:SER171 3.1 10.5 1.0 CA A:PHE172 4.1 9.7 1.0 CD2 A:PHE172 4.2 10.9 1.0 C A:SER171 4.2 11.2 1.0 O A:HOH704 4.5 25.7 1.0 N A:PHE172 4.7 10.2 1.0 N A:ASP173 4.7 8.6 1.0 CB A:VAL188 4.7 9.4 1.0 CE2 A:PHE172 4.8 11.0 1.0 CG1 A:VAL188 4.9 10.3 1.0 C A:PHE172 4.9 9.7 1.0 CG A:PHE172 5.0 10.2 1.0

V.L.Arcus, T.Proft, J.A.Sigrell, H.M.Baker, J.D.Fraser, E.N.Baker. Conservation and Variation in Superantigen Structure and Activity Highlighted By the Three-Dimensional Structures of Two New Superantigens From Streptococcus Pyogenes. J.Mol.Biol. V. 299 157 2000.
ISSN: ISSN 0022-2836
PubMed: 10860729
DOI: 10.1006/JMBI.2000.3725