Samarium in PDB 1a3c: Pyrr, the Bacillus Subtilis Pyrimidine Biosynthetic Operon Repressor, Dimeric Form

The structure of Pyrr, the Bacillus Subtilis Pyrimidine Biosynthetic Operon Repressor, Dimeric Form, PDB code: 1a3c was solved by D.R.Tomchick, R.J.Turner, R.W.Switzer, J.L.Smith, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	15.00 / 1.60
Space group	C 1 2 1
Cell size a, b, c (Å), α, β, γ (°)	76.700, 57.700, 55.000, 90.00, 129.00, 90.00
R / Rfree (%)	19.2 / 23.3

The binding sites of Samarium atom in the Pyrr, the Bacillus Subtilis Pyrimidine Biosynthetic Operon Repressor, Dimeric Form (pdb code 1a3c). This binding sites where shown within 5.0 Angstroms radius around Samarium atom.
In total 2 binding sites of Samarium where determined in the Pyrr, the Bacillus Subtilis Pyrimidine Biosynthetic Operon Repressor, Dimeric Form, PDB code: 1a3c:
Jump to Samarium binding site number: 1; 2;

Samarium binding site 1 out of 2 in the Pyrr, the Bacillus Subtilis Pyrimidine Biosynthetic Operon Repressor, Dimeric Form


Mono view


Stereo pair view

A full contact list of Samarium with other atoms in the Sm binding site number 1 of Pyrr, the Bacillus Subtilis Pyrimidine Biosynthetic Operon Repressor, Dimeric Form within 5.0Å range: probe atom residue distance (Å) B Occ A:Sm182 b:6.3 occ:0.50 OE2 A:GLU10 2.3 21.8 0.6 OD2 A:ASP173 2.4 9.4 1.0 OD2 A:ASP167 2.4 16.1 1.0 CD A:GLU10 3.3 18.3 0.6 CG A:ASP173 3.4 8.9 1.0 CG A:ASP167 3.6 12.0 1.0 CG A:GLU10 3.8 18.1 0.6 OD1 A:ASP173 4.1 9.5 1.0 OD1 A:ASP167 4.3 12.5 1.0 CB A:ASP173 4.3 9.2 1.0 O A:HOH203 4.4 16.3 1.0 NH2 A:ARG49 4.4 8.5 1.0 NH1 A:ARG49 4.4 8.1 1.0 OE1 A:GLU10 4.5 17.3 0.6 O A:HOH202 4.5 16.2 1.0 OE1 A:GLU10 4.5 12.9 0.4 CB A:ASP167 4.6 9.7 1.0 CZ A:ARG49 4.7 5.8 1.0

Samarium binding site 2 out of 2 in the Pyrr, the Bacillus Subtilis Pyrimidine Biosynthetic Operon Repressor, Dimeric Form


Mono view


Stereo pair view

A full contact list of Samarium with other atoms in the Sm binding site number 2 of Pyrr, the Bacillus Subtilis Pyrimidine Biosynthetic Operon Repressor, Dimeric Form within 5.0Å range: probe atom residue distance (Å) B Occ A:Sm183 b:20.0 occ:0.40 O A:HOH325 2.3 39.8 1.0 O A:HOH335 2.3 44.1 1.0 O A:HOH422 3.5 19.2 1.0 O A:HOH337 3.5 37.4 1.0 O A:HOH314 3.6 21.4 1.0 O A:HOH336 4.1 49.8 1.0 OD2 A:ASP9 4.1 20.6 1.0 O A:HOH417 4.4 42.6 1.0 CG A:ASP9 4.5 18.4 1.0 OD1 A:ASP9 4.7 18.2 1.0

D.R.Tomchick, R.J.Turner, R.L.Switzer, J.L.Smith. Adaptation of An Enzyme to Regulatory Function: Structure of Bacillus Subtilis Pyrr, A Pyr Rna-Binding Attenuation Protein and Uracil Phosphoribosyltransferase. Structure V. 6 337 1998.
ISSN: ISSN 0969-2126
PubMed: 9551555
DOI: 10.1016/S0969-2126(98)00036-7