Magnesium in PDB 1wcm: Complete 12-Subunit Rna Polymerase II at 3.8 Ang

All present enzymatic activity of Complete 12-Subunit Rna Polymerase II at 3.8 Ang:
2.7.7.6;

The structure of Complete 12-Subunit Rna Polymerase II at 3.8 Ang, PDB code: 1wcm was solved by K.-J.Armache, S.Mitterweger, A.Meinhart, P.Cramer, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	50 / 3.80
Space group	C 2 2 21
Cell size a, b, c (Å), α, β, γ (°)	222.718, 395.135, 284.300, 90.00, 90.00, 90.00
R / Rfree (%)	25.69 / 28.54

The structure of Complete 12-Subunit Rna Polymerase II at 3.8 Ang also contains other interesting chemical elements:

Zinc

(Zn)

8 atoms

The binding sites of Magnesium atom in the Complete 12-Subunit Rna Polymerase II at 3.8 Ang (pdb code 1wcm). 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 Complete 12-Subunit Rna Polymerase II at 3.8 Ang, PDB code: 1wcm:

Magnesium binding site 1 out of 1 in the Complete 12-Subunit Rna Polymerase II at 3.8 Ang


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Complete 12-Subunit Rna Polymerase II at 3.8 Ang within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg2458 b:56.3 occ:1.00 OD1 A:ASP481 2.9 66.7 1.0 OD1 A:ASP483 2.9 70.7 1.0 OD2 A:ASP481 3.1 67.7 1.0 OD1 A:ASP485 3.2 51.1 1.0 OD2 A:ASP483 3.2 69.8 1.0 CG A:ASP481 3.4 68.3 1.0 CG A:ASP483 3.4 68.1 1.0 OD2 A:ASP485 3.7 48.7 1.0 CG A:ASP485 3.8 50.7 1.0 CB A:ASP481 4.8 68.7 1.0 NH2 A:ARG446 4.9 67.2 1.0 CB A:ASP483 5.0 64.5 1.0

K.-J.Armache, S.Mitterweger, A.Meinhart, P.Cramer. Structures of Complete Rna Polymerase II and Its Subcomplex,RPB4/7 J.Biol.Chem. V. 280 7131 2005.
ISSN: ISSN 0021-9258
PubMed: 15591044
DOI: 10.1074/JBC.M413038200