Magnesium in PDB 1wq1: Ras-Rasgap Complex

The structure of Ras-Rasgap Complex, PDB code: 1wq1 was solved by K.Scheffzek, M.R.Ahmadian, W.Kabsch, L.Wiesmueller, A.Lautwein, F.Schmitz, A.Wittinghofer, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	30.00 / 2.50
Space group	P 1 21 1
Cell size a, b, c (Å), α, β, γ (°)	71.900, 41.100, 89.000, 90.00, 108.40, 90.00
R / Rfree (%)	23.3 / 31.9

The structure of Ras-Rasgap Complex also contains other interesting chemical elements:

Fluorine	(F)	3 atoms
Aluminium	(Al)	1 atom

The binding sites of Magnesium atom in the Ras-Rasgap Complex (pdb code 1wq1). 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 Ras-Rasgap Complex, PDB code: 1wq1:

Magnesium binding site 1 out of 1 in the Ras-Rasgap Complex


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Ras-Rasgap Complex within 5.0Å range: probe atom residue distance (Å) B Occ R:Mg168 b:13.3 occ:1.00 O2B R:GDP167 1.8 11.0 1.0 OG1 R:THR35 2.0 2.6 1.0 OG R:SER17 2.0 13.0 1.0 F2 R:AF3169 2.3 33.3 1.0 O R:HOH201 2.4 8.8 1.0 CB R:SER17 3.0 20.1 1.0 PB R:GDP167 3.2 20.3 1.0 CB R:THR35 3.2 6.8 1.0 O2A R:GDP167 3.5 24.0 1.0 N R:THR35 3.7 15.5 1.0 O3B R:GDP167 3.7 19.7 1.0 O R:ASP33 3.9 22.7 1.0 O G:HOH232 3.9 24.5 1.0 AL R:AF3169 3.9 41.5 1.0 O3A R:GDP167 4.0 17.0 1.0 CA R:THR35 4.0 9.1 1.0 PA R:GDP167 4.1 17.5 1.0 CA R:SER17 4.2 15.4 1.0 N R:SER17 4.2 20.3 1.0 O1B R:GDP167 4.3 24.6 1.0 CG2 R:THR35 4.3 2.0 1.0 O1A R:GDP167 4.3 16.0 1.0 C R:PRO34 4.4 17.5 1.0 OD2 R:ASP57 4.5 10.4 1.0 CA R:PRO34 4.6 16.2 1.0 NH1 G:ARG789 4.7 11.8 1.0 O R:HOH217 4.8 44.7 1.0 O R:HOH230 4.8 16.7 1.0 F1 R:AF3169 4.9 44.0 1.0 C R:ASP33 4.9 17.6 1.0 OD1 R:ASP57 4.9 14.9 1.0 O R:THR58 4.9 11.5 1.0

K.Scheffzek, M.R.Ahmadian, W.Kabsch, L.Wiesmuller, A.Lautwein, F.Schmitz, A.Wittinghofer. The Ras-Rasgap Complex: Structural Basis For Gtpase Activation and Its Loss in Oncogenic Ras Mutants. Science V. 277 333 1997.
ISSN: ISSN 0036-8075
PubMed: 9219684
DOI: 10.1126/SCIENCE.277.5324.333