Potassium in PDB 6x90: Structure of the Guanine Nucleotide Exchange Factor SEC12 Bound to the Small Gtpase SAR1

The structure of Structure of the Guanine Nucleotide Exchange Factor SEC12 Bound to the Small Gtpase SAR1, PDB code: 6x90 was solved by A.M.N.Joiner, J.C.Fromme, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	57.71 / 2.26
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	50.333, 93.62, 115.423, 90, 90, 90
R / Rfree (%)	19.9 / 25.6

The binding sites of Potassium atom in the Structure of the Guanine Nucleotide Exchange Factor SEC12 Bound to the Small Gtpase SAR1 (pdb code 6x90). 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 Structure of the Guanine Nucleotide Exchange Factor SEC12 Bound to the Small Gtpase SAR1, PDB code: 6x90:

Potassium binding site 1 out of 1 in the Structure of the Guanine Nucleotide Exchange Factor SEC12 Bound to the Small Gtpase SAR1


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Structure of the Guanine Nucleotide Exchange Factor SEC12 Bound to the Small Gtpase SAR1 within 5.0Å range: probe atom residue distance (Å) B Occ B:K901 b:61.8 occ:1.00 OD1 B:ASN36 2.8 45.3 1.0 O B:ILE38 2.8 49.0 1.0 O B:HOH1038 2.9 51.6 1.0 O B:GLY32 2.9 39.8 1.0 O B:GLY34 2.9 42.7 1.0 O B:ASP68 3.1 63.9 1.0 CG B:ASN36 3.8 44.0 1.0 C B:GLY32 3.8 49.5 1.0 C B:ILE38 4.0 50.7 1.0 C B:GLY34 4.1 49.2 1.0 C B:ASP68 4.2 49.8 1.0 ND2 B:ASN36 4.2 43.6 1.0 C B:GLU33 4.2 44.6 1.0 ND2 B:ASN40 4.3 45.7 1.0 N B:GLY34 4.4 54.0 1.0 O B:GLU33 4.4 46.3 1.0 N B:ILE38 4.5 49.8 1.0 CA B:ASP68 4.5 47.7 1.0 N B:GLU33 4.5 39.5 1.0 N B:GLY32 4.6 38.8 1.0 N B:ASN36 4.6 56.7 1.0 CA B:GLU33 4.6 40.8 1.0 O B:ASN36 4.6 89.5 1.0 C B:GLY31 4.7 39.9 1.0 CB B:ASP68 4.7 49.6 1.0 OD1 B:ASP68 4.7 62.5 1.0 CA B:GLY32 4.8 38.9 1.0 CA B:ILE38 4.8 48.8 1.0 O B:GLY31 4.8 38.4 1.0 CA B:PRO39 4.8 50.6 1.0 C B:ASN36 4.9 60.3 1.0 CA B:GLY34 4.9 49.8 1.0 N B:PRO39 4.9 50.9 1.0

A.M.N.Joiner, J.C.Fromme. Structural Basis For Initiation of the Secretory Pathway: Crystal Structure of the SAR1-SEC12 Complex To Be Published.