Magnesium in PDB 4tz0: Dead-Box Helicase MSS116 Bound to Ssrna and Gdp-Bef

All present enzymatic activity of Dead-Box Helicase MSS116 Bound to Ssrna and Gdp-Bef:
3.6.4.13;

The structure of Dead-Box Helicase MSS116 Bound to Ssrna and Gdp-Bef, PDB code: 4tz0 was solved by A.L.Mallam, D.J.Sidote, A.M.Lambowitz, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	47.27 / 2.35
Space group	P 21 21 2
Cell size a, b, c (Å), α, β, γ (°)	89.979, 126.614, 55.553, 90.00, 90.00, 90.00
R / Rfree (%)	23.1 / 26

The structure of Dead-Box Helicase MSS116 Bound to Ssrna and Gdp-Bef also contains other interesting chemical elements:

Fluorine

(F)

3 atoms

The binding sites of Magnesium atom in the Dead-Box Helicase MSS116 Bound to Ssrna and Gdp-Bef (pdb code 4tz0). 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 Dead-Box Helicase MSS116 Bound to Ssrna and Gdp-Bef, PDB code: 4tz0:

Magnesium binding site 1 out of 1 in the Dead-Box Helicase MSS116 Bound to Ssrna and Gdp-Bef


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Dead-Box Helicase MSS116 Bound to Ssrna and Gdp-Bef within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg603 b:46.3 occ:1.00 F2 A:BEF602 2.0 45.5 1.0 O1B A:GDP601 2.1 47.2 1.0 O A:HOH709 2.1 41.8 1.0 O A:HOH716 2.1 46.1 1.0 O A:HOH733 2.1 44.5 1.0 O A:HOH715 2.2 48.5 1.0 PB A:GDP601 3.3 53.4 1.0 HE2 A:LYS158 3.4 59.7 1.0 HA2 A:GLY439 3.4 50.1 1.0 BE A:BEF602 3.5 48.0 1.0 HB2 A:LYS158 3.6 56.0 1.0 O3B A:GDP601 3.6 49.0 1.0 HG1 A:THR159 3.6 55.9 1.0 OD1 A:ASP267 3.8 46.2 1.0 OD2 A:ASP267 3.8 42.9 1.0 OE2 A:GLU268 3.9 50.2 1.0 OG1 A:THR159 4.0 46.6 1.0 F1 A:BEF602 4.2 46.4 1.0 O2B A:GDP601 4.2 52.0 1.0 O2A A:GDP601 4.2 51.4 1.0 CG A:ASP267 4.3 47.9 1.0 CA A:GLY439 4.3 41.7 1.0 F3 A:BEF602 4.3 44.2 1.0 CE A:LYS158 4.3 49.8 1.0 HA3 A:GLY439 4.4 50.1 1.0 HD11 A:LEU192 4.4 49.4 1.0 HH22 A:ARG469 4.4 57.9 1.0 O3A A:GDP601 4.5 58.4 1.0 CB A:LYS158 4.5 46.7 1.0 H A:THR159 4.5 52.1 1.0 O A:HOH719 4.6 43.6 1.0 O1A A:GDP601 4.6 45.1 1.0 HE3 A:LYS158 4.6 59.7 1.0 HB3 A:LYS158 4.6 56.0 1.0 PA A:GDP601 4.7 53.9 1.0 O A:GLY439 4.7 42.5 1.0 HZ3 A:LYS158 4.7 68.7 1.0 N A:THR159 4.8 43.4 1.0 H A:LYS158 4.9 55.3 1.0 CD A:GLU268 4.9 49.2 1.0 NZ A:LYS158 4.9 57.2 1.0 HD21 A:LEU192 5.0 37.4 1.0 HZ2 A:LYS158 5.0 68.7 1.0 HG2 A:GLU268 5.0 54.0 1.0

A.L.Mallam, D.J.Sidote, A.M.Lambowitz. Molecular Insights Into Rna and Dna Helicase Evolution From the Determinants of Specificity For A Dead-Box Rna Helicase. Elife V. 4 2014.
ISSN: ESSN 2050-084X
PubMed: 25497230
DOI: 10.7554/ELIFE.04630