Calcium in PDB 1ou9: Structure of Sspb, A Aaa+ Protease Delivery Protein

The structure of Structure of Sspb, A Aaa+ Protease Delivery Protein, PDB code: 1ou9 was solved by I.Levchenko, R.A.Grant, D.A.Wah, R.T.Sauer, T.A.Baker, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	16.95 / 1.80
Space group	C 2 2 21
Cell size a, b, c (Å), α, β, γ (°)	65.292, 137.839, 93.790, 90.00, 90.00, 90.00
R / Rfree (%)	21.7 / 25.3

The binding sites of Calcium atom in the Structure of Sspb, A Aaa+ Protease Delivery Protein (pdb code 1ou9). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total 2 binding sites of Calcium where determined in the Structure of Sspb, A Aaa+ Protease Delivery Protein, PDB code: 1ou9:
Jump to Calcium binding site number: 1; 2;

Calcium binding site 1 out of 2 in the Structure of Sspb, A Aaa+ Protease Delivery Protein


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Structure of Sspb, A Aaa+ Protease Delivery Protein within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca130 b:20.0 occ:1.00 O A:ALA56 2.3 18.6 1.0 O A:THR59 2.4 19.1 1.0 O A:HOH192 2.5 24.4 1.0 O A:HOH136 2.5 20.6 1.0 C A:ALA56 3.4 16.4 1.0 C A:THR59 3.6 20.3 1.0 CA A:ALA56 4.0 17.2 1.0 O A:HOH175 4.2 18.8 1.0 OG1 A:THR59 4.2 20.2 1.0 CA A:GLY60 4.3 20.0 1.0 N A:GLY60 4.4 20.3 1.0 CB A:ALA56 4.5 19.3 1.0 N A:SER57 4.5 18.5 1.0 N A:THR59 4.5 19.5 1.0 CA A:THR59 4.5 19.7 1.0 CA A:SER57 4.7 21.7 1.0 O A:HOH132 4.8 24.7 1.0 C A:SER57 4.9 20.8 1.0

Calcium binding site 2 out of 2 in the Structure of Sspb, A Aaa+ Protease Delivery Protein


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 2 of Structure of Sspb, A Aaa+ Protease Delivery Protein within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca131 b:24.4 occ:1.00 O B:ALA56 2.3 21.8 1.0 OE2 A:GLU81 2.3 28.1 1.0 OE1 A:GLN70 2.4 23.9 1.0 O B:THR59 2.4 22.4 1.0 O B:HOH132 2.5 23.1 1.0 O B:HOH134 2.6 26.8 1.0 C B:ALA56 3.4 22.6 1.0 CD A:GLN70 3.5 22.4 1.0 CD A:GLU81 3.5 27.7 1.0 C B:THR59 3.6 23.2 1.0 CA B:ALA56 4.0 23.4 1.0 O A:HOH155 4.2 25.6 1.0 NE2 A:GLN70 4.2 22.0 1.0 OE1 A:GLU81 4.3 28.7 1.0 OG1 B:THR59 4.3 23.4 1.0 CA B:GLY60 4.3 24.0 1.0 CG A:GLU81 4.3 25.0 1.0 N B:GLY60 4.4 22.6 1.0 O A:HOH153 4.5 37.4 1.0 N B:THR59 4.5 22.3 1.0 CB B:ALA56 4.5 24.7 1.0 CG A:GLN70 4.5 20.1 1.0 N B:SER57 4.5 23.5 1.0 CA B:THR59 4.6 22.0 1.0 CA B:SER57 4.7 24.9 1.0 CB A:TYR83 4.8 20.4 1.0 CD1 A:TYR83 4.8 21.7 1.0 O B:HOH130 4.8 25.4 1.0 C B:SER57 4.9 24.0 1.0

I.Levchenko, R.A.Grant, D.A.Wah, R.T.Sauer, T.A.Baker. Structure of A Delivery Protein For An Aaa+ Protease in Complex with A Peptide Degradation Tag Mol.Cell V. 12 365 2003.
ISSN: ISSN 1097-2765
PubMed: 14536076
DOI: 10.1016/J.MOLCEL.2003.08.014