Magnesium in PDB 6k1a: Crystal Structure of EXD2 Exonuclease Domain Soaked in Mn and Mg

All present enzymatic activity of Crystal Structure of EXD2 Exonuclease Domain Soaked in Mn and Mg:
3.1.11.1;

The structure of Crystal Structure of EXD2 Exonuclease Domain Soaked in Mn and Mg, PDB code: 6k1a was solved by J.Park, C.Lee, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	39.22 / 2.60
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	46.324, 73.664, 131.423, 90.00, 90.00, 90.00
R / Rfree (%)	22.3 / 26

The structure of Crystal Structure of EXD2 Exonuclease Domain Soaked in Mn and Mg also contains other interesting chemical elements:

Manganese

(Mn)

2 atoms

The binding sites of Magnesium atom in the Crystal Structure of EXD2 Exonuclease Domain Soaked in Mn and Mg (pdb code 6k1a). 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 EXD2 Exonuclease Domain Soaked in Mn and Mg, PDB code: 6k1a:
Jump to Magnesium binding site number: 1; 2;

Magnesium binding site 1 out of 2 in the Crystal Structure of EXD2 Exonuclease Domain Soaked in Mn and Mg


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 EXD2 Exonuclease Domain Soaked in Mn and Mg within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg302 b:66.8 occ:1.00 O A:HOH406 2.0 46.3 1.0 OD1 A:ASP108 2.5 36.9 1.0 O A:HOH409 2.8 56.9 1.0 O A:HOH418 3.6 59.3 1.0 CG A:ASP108 3.6 37.8 1.0 OD2 A:ASP108 4.1 38.6 1.0 O A:CYS109 4.1 29.1 1.0 O A:VAL166 4.1 51.1 1.0 OD1 A:ASP171 4.2 48.3 1.0 OD2 A:ASP171 4.2 48.7 1.0 MN A:MN301 4.3 59.6 1.0 N A:CYS109 4.5 32.0 1.0 CG A:ASP171 4.7 48.0 1.0 CB A:ASP108 4.9 37.1 1.0

Magnesium binding site 2 out of 2 in the Crystal Structure of EXD2 Exonuclease Domain Soaked in Mn and Mg


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 EXD2 Exonuclease Domain Soaked in Mn and Mg within 5.0Å range: probe atom residue distance (Å) B Occ B:Mg302 b:79.0 occ:1.00 O B:HOH415 1.8 62.4 1.0 O B:HOH402 2.8 49.9 1.0 OD1 B:ASP108 3.0 40.3 1.0 O A:HOH430 3.6 59.1 1.0 MN B:MN301 3.9 52.5 1.0 CG B:ASP108 4.1 40.5 1.0 O B:VAL166 4.1 40.2 1.0 O B:CYS109 4.4 32.9 1.0 OD2 B:ASP108 4.4 42.2 1.0 OD1 B:ASP171 4.6 47.2 1.0 OD2 B:ASP171 4.7 51.3 1.0 N B:CYS109 5.0 36.6 1.0

J.Park, S.Y.Lee, H.Jeong, M.G.Kang, L.Van Haute, M.Minczuk, J.K.Seo, Y.Jun, K.Myung, H.W.Rhee, C.Lee. The Structure of Human EXD2 Reveals A Chimeric 3' to 5' Exonuclease Domain That Discriminates Substrates Via Metal Coordination. Nucleic Acids Res. V. 47 7078 2019.
ISSN: ESSN 1362-4962
PubMed: 31127291
DOI: 10.1093/NAR/GKZ454