Magnesium in PDB 7a6h: Cryo-Em Structure of Human Apo Rna Polymerase III

All present enzymatic activity of Cryo-Em Structure of Human Apo Rna Polymerase III:
2.7.7.6;

The structure of Cryo-Em Structure of Human Apo Rna Polymerase III also contains other interesting chemical elements:

Zinc	(Zn)	7 atoms
Iron	(Fe)	4 atoms

The binding sites of Magnesium atom in the Cryo-Em Structure of Human Apo Rna Polymerase III (pdb code 7a6h). 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 Cryo-Em Structure of Human Apo Rna Polymerase III, PDB code: 7a6h:

Magnesium binding site 1 out of 1 in the Cryo-Em Structure of Human Apo Rna Polymerase III


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Cryo-Em Structure of Human Apo Rna Polymerase III within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg1403 b:67.3 occ:1.00 OD2 A:ASP499 1.9 70.4 1.0 OD1 A:ASP501 2.5 67.8 1.0 CG A:ASP499 2.5 70.4 1.0 OD1 A:ASP499 2.6 70.4 1.0 OD2 A:ASP503 2.9 68.4 1.0 OD2 A:ASP501 3.1 67.8 1.0 CG A:ASP501 3.2 67.8 1.0 CG A:ASP503 3.4 68.4 1.0 OD1 A:ASP503 3.5 68.4 1.0 CB A:ASP499 4.0 70.4 1.0 NH2 A:ARG464 4.0 67.1 1.0 CB A:ASP503 4.5 68.4 1.0 CB A:ASP501 4.7 67.8 1.0 N A:ASP499 5.0 70.4 1.0 CA A:ASP499 5.0 70.4 1.0

M.Girbig, A.D.Misiaszek, M.K.Vorlaender, A.Lafita, H.Groetsch, F.Baudin, A.Bateman, C.W.Mueller. Cryo-Em Structures of Human Rna Polymerase III in Its Unbound and Transcribing States To Be Published.
DOI: 10.1038/S41594-020-00555-5