Magnesium in PDB 1tag: Structural Determinants For Activation of the Alpha-Subunit of A Heterotrimeric G Protein

The structure of Structural Determinants For Activation of the Alpha-Subunit of A Heterotrimeric G Protein, PDB code: 1tag was solved by D.G.Lambright, J.P.Noel, H.E.Hamm, P.B.Sigler, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	8.00 / 1.80
Space group	I 2 2 2
Cell size a, b, c (Å), α, β, γ (°)	71.900, 87.800, 143.100, 90.00, 90.00, 90.00
R / Rfree (%)	18.7 / 21.1

The binding sites of Magnesium atom in the Structural Determinants For Activation of the Alpha-Subunit of A Heterotrimeric G Protein (pdb code 1tag). 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 Structural Determinants For Activation of the Alpha-Subunit of A Heterotrimeric G Protein, PDB code: 1tag:

Magnesium binding site 1 out of 1 in the Structural Determinants For Activation of the Alpha-Subunit of A Heterotrimeric G Protein


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Structural Determinants For Activation of the Alpha-Subunit of A Heterotrimeric G Protein within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg352 b:15.7 occ:1.00 O A:HOH356 2.1 15.8 1.0 O A:HOH355 2.1 12.3 1.0 O2B A:GDP351 2.2 10.1 1.0 OG A:SER43 2.2 10.7 1.0 O A:HOH353 2.2 14.5 1.0 O A:HOH354 2.2 10.6 1.0 CB A:SER43 3.1 8.7 1.0 PB A:GDP351 3.3 8.6 1.0 O1B A:GDP351 3.5 8.5 1.0 N A:SER43 3.8 7.8 1.0 CA A:SER43 4.0 9.0 1.0 NH1 A:ARG174 4.0 41.1 1.0 O1A A:GDP351 4.1 10.3 1.0 O A:HOH560 4.1 27.7 1.0 O A:HOH475 4.2 19.2 1.0 OD2 A:ASP196 4.2 19.6 1.0 O3A A:GDP351 4.2 11.0 1.0 O A:HOH526 4.3 26.4 1.0 O3B A:GDP351 4.4 9.4 1.0 O A:HOH434 4.4 16.6 1.0 O A:HOH728 4.4 42.9 1.0 PA A:GDP351 4.5 12.2 1.0 O A:HOH730 4.7 42.6 1.0 O2A A:GDP351 4.7 9.1 1.0 O A:HOH427 4.7 17.9 1.0 C A:LYS42 4.9 9.3 1.0 CB A:LYS42 4.9 6.9 1.0 O A:HOH619 4.9 27.5 1.0 CZ A:ARG174 5.0 37.4 1.0

D.G.Lambright, J.P.Noel, H.E.Hamm, P.B.Sigler. Structural Determinants For Activation of the Alpha-Subunit of A Heterotrimeric G Protein. Nature V. 369 621 1994.
ISSN: ISSN 0028-0836
PubMed: 8208289
DOI: 10.1038/369621A0