Magnesium in PDB 6tam: X-Ray Structure of Human K-Ras G12C in Complex with Covalent Isoquinolinone Inhibitor (Compound 3)

The structure of X-Ray Structure of Human K-Ras G12C in Complex with Covalent Isoquinolinone Inhibitor (Compound 3), PDB code: 6tam was solved by A.Friberg, D.Nguyen, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	43.83 / 1.64
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	41.144, 58.522, 66.141, 90.00, 90.00, 90.00
R / Rfree (%)	17.4 / 20.1

The structure of X-Ray Structure of Human K-Ras G12C in Complex with Covalent Isoquinolinone Inhibitor (Compound 3) also contains other interesting chemical elements:

Fluorine

(F)

2 atoms

The binding sites of Magnesium atom in the X-Ray Structure of Human K-Ras G12C in Complex with Covalent Isoquinolinone Inhibitor (Compound 3) (pdb code 6tam). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total only one binding site of Magnesium was determined in the X-Ray Structure of Human K-Ras G12C in Complex with Covalent Isoquinolinone Inhibitor (Compound 3), PDB code: 6tam:

Magnesium binding site 1 out of 1 in the X-Ray Structure of Human K-Ras G12C in Complex with Covalent Isoquinolinone Inhibitor (Compound 3)


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of X-Ray Structure of Human K-Ras G12C in Complex with Covalent Isoquinolinone Inhibitor (Compound 3) within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg202 b:20.2 occ:1.00 O3B A:GDP201 2.0 20.9 1.0 O A:HOH318 2.1 20.4 1.0 OG A:SER17 2.1 20.6 1.0 O A:HOH329 2.1 22.5 1.0 O A:HOH366 2.1 21.3 1.0 O A:HOH349 2.1 22.9 1.0 CB A:SER17 3.1 20.4 1.0 PB A:GDP201 3.3 21.8 1.0 O1B A:GDP201 3.6 22.6 1.0 N A:SER17 3.9 19.7 1.0 OD2 A:ASP57 4.0 24.4 1.0 CA A:SER17 4.1 19.5 1.0 O1A A:GDP201 4.1 21.9 1.0 OD1 A:ASP57 4.1 23.5 1.0 O A:PRO34 4.2 28.3 1.0 O3A A:GDP201 4.3 21.1 1.0 O A:ASP33 4.3 26.5 1.0 CA A:PRO34 4.4 28.6 1.0 O2B A:GDP201 4.4 21.6 1.0 CG A:ASP57 4.5 23.4 1.0 PA A:GDP201 4.5 21.7 1.0 O A:ILE36 4.5 25.4 1.0 O A:THR58 4.6 24.0 0.5 O A:THR58 4.6 24.4 0.5 C A:PRO34 4.6 28.6 1.0 O2A A:GDP201 4.7 21.3 1.0 CB A:ALA59 4.7 31.2 1.0 O14 A:MZQ203 4.7 29.2 1.0 O A:TYR32 4.8 26.8 1.0 CD2 A:TYR32 4.8 26.7 1.0 O A:HOH339 4.9 24.3 1.0 CB A:LYS16 4.9 19.8 1.0 C A:LYS16 5.0 19.1 1.0

J.Mortier, A.Friberg, V.Badock, D.Moosmayer, J.Schroeder, P.Steigemann, F.Siegel, S.Gradl, M.Bauser, R.C.Hillig, H.Briem, K.Eis, B.Bader, D.Nguyen, C.D.Christ. Computationally Empowered Workflow Identifies Novel Covalent Allosteric Binders For Kras G12C Chemmedchem 2020.
ISSN: ESSN 1860-7187
DOI: 10.1002/CMDC.201900727