Potassium in PDB 7zh9: UBA1 in Complex with Atp

All present enzymatic activity of UBA1 in Complex with Atp:
6.2.1.45;

The structure of UBA1 in Complex with Atp, PDB code: 7zh9 was solved by M.Misra, H.Schindelin, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	47.24 / 1.72
Space group	C 2 2 21
Cell size a, b, c (Å), α, β, γ (°)	107.72, 118.064, 196.654, 90, 90, 90
R / Rfree (%)	16.5 / 20.6

The structure of UBA1 in Complex with Atp also contains other interesting chemical elements:

Magnesium	(Mg)	3 atoms
Chlorine	(Cl)	1 atom

The binding sites of Potassium atom in the UBA1 in Complex with Atp (pdb code 7zh9). 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 UBA1 in Complex with Atp, PDB code: 7zh9:

Potassium binding site 1 out of 1 in the UBA1 in Complex with Atp


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of UBA1 in Complex with Atp within 5.0Å range: probe atom residue distance (Å) B Occ A:K1117 b:20.7 occ:0.47 O A:HOH1329 2.7 20.6 1.0 O A:ALA774 2.8 29.1 1.0 O A:LEU776 2.8 27.6 1.0 H A:LEU776 3.1 37.0 1.0 HA A:ASN775 3.4 37.1 1.0 N A:LEU776 3.6 30.8 1.0 C A:ALA774 3.6 29.6 1.0 HD21 A:ASN694 3.7 29.9 1.0 C A:LEU776 3.8 29.0 1.0 HE1 A:PHE693 3.9 36.5 1.0 CA A:ASN775 4.0 30.9 1.0 N A:ASN775 4.1 30.4 1.0 ND2 A:ASN694 4.1 25.0 1.0 C A:ASN775 4.1 30.4 1.0 HA A:ALA774 4.2 35.0 1.0 CA A:LEU776 4.3 28.6 1.0 HD22 A:ASN694 4.4 29.9 1.0 CA A:ALA774 4.5 29.2 1.0 HB2 A:LEU776 4.6 34.1 1.0 CG A:ASN694 4.6 24.1 1.0 OD1 A:ASN694 4.6 24.3 1.0 H A:ASN775 4.7 36.4 1.0 CE1 A:PHE693 4.8 30.4 1.0 HA A:LYS777 4.8 36.9 1.0 HD1 A:PHE693 4.9 30.2 1.0 HA A:ASN694 5.0 31.3 1.0 N A:LYS777 5.0 29.3 1.0 HB1 A:ALA774 5.0 35.5 1.0

N.Truongvan, S.Li, M.Misra, M.Kuhn, H.Schindelin. Structures of UBA6 Explain Its Dual Specificity For Ubiquitin and FAT10. Nat Commun V. 13 4789 2022.
ISSN: ESSN 2041-1723
PubMed: 35970836
DOI: 10.1038/S41467-022-32040-6