Magnesium in PDB 3c94: Exoi/Ssb-Ct Complex

All present enzymatic activity of Exoi/Ssb-Ct Complex:
3.1.11.1;

The structure of Exoi/Ssb-Ct Complex, PDB code: 3c94 was solved by D.Lu, J.L.Keck, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	20.00 / 2.70
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	67.151, 92.191, 91.277, 90.00, 90.00, 90.00
R / Rfree (%)	19.8 / 25.1

The binding sites of Magnesium atom in the Exoi/Ssb-Ct Complex (pdb code 3c94). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total 2 binding sites of Magnesium where determined in the Exoi/Ssb-Ct Complex, PDB code: 3c94:
Jump to Magnesium binding site number: 1; 2;

Magnesium binding site 1 out of 2 in the Exoi/Ssb-Ct Complex


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Exoi/Ssb-Ct Complex within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg483 b:26.6 occ:1.00 O A:HOH509 1.9 41.1 1.0 O A:HOH503 2.0 36.0 1.0 O A:HOH492 2.0 32.1 1.0 O A:HOH512 2.1 37.2 1.0 O A:HOH487 2.2 26.8 1.0 OD1 A:ASP15 2.3 32.8 1.0 CG A:ASP15 3.3 30.5 1.0 OD2 A:ASP15 3.5 33.4 1.0 OD1 A:ASP108 3.9 33.3 1.0 O A:TYR102 4.0 34.4 1.0 OD2 A:ASP108 4.1 33.3 1.0 O A:TYR16 4.2 28.3 1.0 CG A:ASP108 4.4 34.7 1.0 CB A:ASP15 4.6 28.4 1.0 OD1 A:ASP186 4.7 50.7 1.0 CD2 A:PHE107 5.0 36.8 1.0

Magnesium binding site 2 out of 2 in the Exoi/Ssb-Ct Complex


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 2 of Exoi/Ssb-Ct Complex within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg484 b:45.0 occ:1.00 OD1 A:ASP319 2.3 53.1 1.0 OE1 A:GLU318 2.7 54.2 1.0 OE2 A:GLU318 3.0 52.5 1.0 CD A:GLU318 3.2 54.8 1.0 CG A:ASP319 3.2 50.3 1.0 OD2 A:ASP319 3.4 50.0 1.0 OE2 A:GLU150 4.2 53.8 1.0 O A:LEU147 4.4 40.8 1.0 OE1 A:GLU150 4.4 51.5 1.0 NH2 A:ARG322 4.4 48.9 1.0 CD A:GLU150 4.6 52.7 1.0 CB A:ASP319 4.6 49.0 1.0 CG A:GLU318 4.7 58.2 1.0 NH1 A:ARG148 4.9 38.4 1.0 CD A:ARG148 5.0 37.2 1.0 N A:ASP319 5.0 52.8 1.0 CA A:ASP319 5.0 50.9 1.0

D.Lu, J.L.Keck. Structural Basis of Escherichia Coli Single-Stranded Dna-Binding Protein Stimulation of Exonuclease I. Proc.Natl.Acad.Sci.Usa V. 105 9169 2008.
ISSN: ISSN 0027-8424
PubMed: 18591666
DOI: 10.1073/PNAS.0800741105