Potassium in PDB 3d87: Crystal Structure of Interleukin-23

The structure of Crystal Structure of Interleukin-23, PDB code: 3d87 was solved by B.M.Beyer, R.Ingram, L.Ramanathan, P.Reichert, H.Le, V.Madison, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	20.39 / 2.90
Space group	C 2 2 21
Cell size a, b, c (Å), α, β, γ (°)	110.098, 240.587, 141.781, 90.00, 90.00, 90.00
R / Rfree (%)	26.8 / 32.3

The binding sites of Potassium atom in the Crystal Structure of Interleukin-23 (pdb code 3d87). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 2 binding sites of Potassium where determined in the Crystal Structure of Interleukin-23, PDB code: 3d87:
Jump to Potassium binding site number: 1; 2;

Potassium binding site 1 out of 2 in the Crystal Structure of Interleukin-23


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 Interleukin-23 within 5.0Å range: probe atom residue distance (Å) B Occ D:K5003 b:76.9 occ:1.00 O D:LEU95 2.4 64.1 1.0 O D:THR92 2.6 63.5 1.0 O D:ASP93 3.1 65.8 1.0 C D:LEU95 3.6 64.2 1.0 C D:THR92 3.8 63.6 1.0 C D:ASP93 3.8 65.3 1.0 CE1 D:PHE106 4.0 69.1 1.0 CA D:ASP93 4.0 65.9 1.0 N D:ASP97 4.0 79.7 1.0 CA D:LYS96 4.1 69.3 1.0 N D:LYS96 4.3 68.0 1.0 N D:ASP93 4.3 66.3 1.0 C D:LYS96 4.5 69.4 1.0 N D:LEU95 4.6 63.1 1.0 CZ D:PHE106 4.7 67.6 1.0 CA D:LEU95 4.7 63.5 1.0 CD1 D:PHE106 4.9 70.0 1.0 CA D:ASP97 4.9 79.7 1.0 N D:ILE94 5.0 61.8 1.0

Potassium binding site 2 out of 2 in the Crystal Structure of Interleukin-23


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Crystal Structure of Interleukin-23 within 5.0Å range: probe atom residue distance (Å) B Occ B:K5004 b:73.5 occ:1.00 O B:LEU95 2.6 65.3 1.0 O B:THR92 3.1 68.3 1.0 C B:LEU95 3.8 65.6 1.0 C B:THR92 4.0 68.5 1.0 O B:ASP93 4.0 63.7 1.0 C B:ASP93 4.1 63.4 1.0 CE1 B:PHE106 4.1 66.4 1.0 CA B:ASP93 4.2 64.1 1.0 OG1 B:THR92 4.2 81.9 1.0 CA B:LYS96 4.3 75.9 1.0 N B:ASP93 4.4 65.0 1.0 N B:LYS96 4.5 72.5 1.0 CZ B:PHE106 4.5 66.8 1.0 N B:ASP97 4.6 83.4 1.0 N B:ILE94 4.6 60.1 1.0 N B:LEU95 4.6 61.8 1.0 C B:ILE94 4.7 60.8 1.0 CB B:THR92 4.7 80.0 1.0 CA B:LEU95 4.8 63.4 1.0 C B:LYS96 4.8 76.9 1.0 O B:ILE94 4.9 60.6 1.0

B.M.Beyer, R.Ingram, L.Ramanathan, P.Reichert, H.V.Le, V.Madison, P.Orth. Crystal Structures of the Pro-Inflammatory Cytokine Interleukin-23 and Its Complex with A High-Affinity Neutralizing Antibody J.Mol.Biol. V. 382 942 2008.
ISSN: ISSN 0022-2836
PubMed: 18708069
DOI: 10.1016/J.JMB.2008.08.001