Magnesium in PDB 1r5u: Rna Polymerase II Tfiib Complex

All present enzymatic activity of Rna Polymerase II Tfiib Complex:
2.7.7.6;

The structure of Rna Polymerase II Tfiib Complex, PDB code: 1r5u was solved by D.A.Bushnell, K.D.Westover, R.Davis, R.D.Kornberg, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	50.00 / 4.50
Space group	I 2 2 2
Cell size a, b, c (Å), α, β, γ (°)	212.438, 217.182, 422.876, 90.00, 90.00, 90.00
R / Rfree (%)	34.5 / 37.3

The structure of Rna Polymerase II Tfiib Complex also contains other interesting chemical elements:

Zinc

(Zn)

9 atoms

The binding sites of Magnesium atom in the Rna Polymerase II Tfiib Complex (pdb code 1r5u). 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 Rna Polymerase II Tfiib Complex, PDB code: 1r5u:

Magnesium binding site 1 out of 1 in the Rna Polymerase II Tfiib Complex


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Rna Polymerase II Tfiib Complex within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg1736 b:47.1 occ:1.00 OD2 A:ASP483 2.7 0.8 1.0 OD2 A:ASP481 2.7 78.4 1.0 OD1 A:ASP485 2.8 0.8 1.0 OD1 A:ASP483 3.0 0.8 1.0 CG A:ASP483 3.2 0.8 1.0 OD1 A:ASP481 3.3 78.4 1.0 CG A:ASP481 3.3 78.4 1.0 OD2 A:ASP485 3.5 0.8 1.0 CG A:ASP485 3.6 0.8 1.0 CB A:ASP483 4.6 0.8 1.0 CB A:ASP481 4.7 78.4 1.0 O A:ASP481 4.9 0.6 1.0

D.A.Bushnell, K.D.Westover, R.E.Davis, R.D.Kornberg. Structural Basis of Transcription: An Rna Polymerase II-Tfiib Cocrystal at 4.5 Angstroms. Science V. 303 983 2004.
ISSN: ISSN 0036-8075
PubMed: 14963322
DOI: 10.1126/SCIENCE.1090838