Magnesium in PDB 2v1x: Crystal Structure of Human Recq-Like Dna Helicase

The structure of Crystal Structure of Human Recq-Like Dna Helicase, PDB code: 2v1x was solved by A.C.W.Pike, B.Shrestha, N.Burgess-Brown, O.King, E.Ugochukwu, S.Watt, A.Edwards, C.H.Arrowsmith, J.Weigelt, M.Sundstrom, O.Gileadi, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	45.00 / 2.00
Space group	P 1 21 1
Cell size a, b, c (Å), α, β, γ (°)	83.229, 97.647, 85.849, 90.00, 104.50, 90.00
R / Rfree (%)	23.2 / 27.8

The structure of Crystal Structure of Human Recq-Like Dna Helicase also contains other interesting chemical elements:

Chlorine	(Cl)	9 atoms
Zinc	(Zn)	2 atoms

The binding sites of Magnesium atom in the Crystal Structure of Human Recq-Like Dna Helicase (pdb code 2v1x). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total 2 binding sites of Magnesium where determined in the Crystal Structure of Human Recq-Like Dna Helicase, PDB code: 2v1x:
Jump to Magnesium binding site number: 1; 2;

Magnesium binding site 1 out of 2 in the Crystal Structure of Human Recq-Like Dna Helicase


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Crystal Structure of Human Recq-Like Dna Helicase within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg1594 b:42.2 occ:1.00 O2B A:ADP1593 1.9 36.3 1.0 O A:HOH2033 1.9 36.2 1.0 O A:HOH2018 2.1 43.5 1.0 O A:HOH2034 2.2 44.8 1.0 O A:HOH2144 2.5 37.4 1.0 PB A:ADP1593 3.1 34.2 1.0 O1B A:ADP1593 3.5 42.7 1.0 OG A:SER120 3.7 34.9 1.0 O A:HOH2017 4.0 38.4 1.0 OD2 A:ASP219 4.1 48.0 1.0 O3A A:ADP1593 4.2 32.5 1.0 OD1 A:ASP219 4.3 43.8 1.0 O3B A:ADP1593 4.3 16.9 1.0 O2A A:ADP1593 4.3 24.7 1.0 OE2 A:GLU220 4.5 55.2 1.0 PA A:ADP1593 4.5 41.3 1.0 O1A A:ADP1593 4.6 48.3 1.0 CG A:ASP219 4.6 43.3 1.0 CE A:LYS119 4.6 25.6 1.0 CB A:LYS119 4.8 20.5 1.0

Magnesium binding site 2 out of 2 in the Crystal Structure of Human Recq-Like Dna Helicase


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 2 of Crystal Structure of Human Recq-Like Dna Helicase within 5.0Å range: probe atom residue distance (Å) B Occ B:Mg1594 b:38.4 occ:1.00 O B:HOH2165 1.9 39.5 1.0 O2B B:ADP1593 2.0 25.2 1.0 O B:HOH2037 2.0 37.4 1.0 O B:HOH2038 2.0 36.0 1.0 O B:HOH2027 2.3 36.6 1.0 O B:HOH2162 2.5 36.0 1.0 PB B:ADP1593 3.2 31.1 1.0 O1B B:ADP1593 3.6 32.7 1.0 OD2 B:ASP219 3.9 45.8 1.0 OE1 B:GLU220 4.0 49.7 1.0 OD1 B:ASP219 4.2 44.9 1.0 OG B:SER120 4.2 35.6 1.0 O B:HOH2026 4.3 32.1 1.0 O3A B:ADP1593 4.3 24.5 1.0 O3B B:ADP1593 4.3 10.5 1.0 CG B:ASP219 4.5 38.6 1.0 O2A B:ADP1593 4.6 25.6 1.0 CE B:LYS119 4.7 23.4 1.0 PA B:ADP1593 4.7 41.1 1.0 NE2 B:GLN147 4.7 69.1 1.0 O1A B:ADP1593 4.8 43.4 1.0 CB B:LYS119 4.9 22.3 1.0 O B:HOH2166 5.0 35.9 1.0

A.C.W.Pike, B.Shrestha, V.Popuri, N.Burgess-Brown, L.Muzzolini, S.Costantini, A.Vindigni, O.Gileadi. Structure of the Human RECQ1 Helicase Reveals A Putative Strand-Separation Pin. Proc.Natl.Acad.Sci.Usa V. 106 1039 2009.
ISSN: ISSN 0027-8424
PubMed: 19151156
DOI: 10.1073/PNAS.0806908106