Samarium in PDB 6p74: Old Nuclease From Thermus Scotoductus

The structure of Old Nuclease From Thermus Scotoductus, PDB code: 6p74 was solved by J.S.Chappie, C.J.Schiltz, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	101.38 / 2.20
Space group	I 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	83.362, 101.737, 202.753, 90.00, 90.00, 90.00
R / Rfree (%)	19.3 / 22.9

The structure of Old Nuclease From Thermus Scotoductus also contains other interesting chemical elements:

Platinum

(Pt)

2 atoms

The binding sites of Samarium atom in the Old Nuclease From Thermus Scotoductus (pdb code 6p74). This binding sites where shown within 5.0 Angstroms radius around Samarium atom.
In total only one binding site of Samarium was determined in the Old Nuclease From Thermus Scotoductus, PDB code: 6p74:

Samarium binding site 1 out of 1 in the Old Nuclease From Thermus Scotoductus


Mono view


Stereo pair view

A full contact list of Samarium with other atoms in the Sm binding site number 1 of Old Nuclease From Thermus Scotoductus within 5.0Å range: probe atom residue distance (Å) B Occ A:Sm614 b:49.8 occ:1.00 OD2 A:ASP431 2.4 67.1 1.0 O A:HOH708 2.6 54.5 1.0 OE2 A:GLU480 2.6 68.1 1.0 O A:HOH713 2.6 58.2 1.0 OE1 A:GLU480 2.7 61.4 1.0 O A:HOH703 2.8 59.4 1.0 CD A:GLU480 3.0 64.1 1.0 CG A:ASP431 3.5 60.9 1.0 CB A:ASP431 4.3 54.8 1.0 CG A:GLU480 4.4 67.4 1.0 OD1 A:ASP431 4.5 61.5 1.0 OD1 A:ASP381 4.6 69.8 1.0 CB A:SER478 4.6 67.3 1.0 OE2 A:GLU377 4.6 77.9 1.0 OD1 A:ASP433 4.7 63.2 1.0 OD2 A:ASP433 4.8 66.4 1.0 OE1 A:GLU377 4.9 77.5 1.0 N A:LEU479 5.0 61.1 1.0

C.J.Schiltz, J.S.Chappie. The Full-Length Structure of Thermus Scotoductus Old Defines the Atp Hydrolysis Properties and Catalytic Mechanism of Class 1 Old Family Nucleases To Be Published.