Zinc in PDB 6qa0: MSRB3 - Aa 1-137

All present enzymatic activity of MSRB3 - Aa 1-137:
1.8.4.12; 1.8.4.14;

The structure of MSRB3 - Aa 1-137, PDB code: 6qa0 was solved by G.Javitt, D.Fass, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	42.65 / 1.71
Space group	P 21 21 2
Cell size a, b, c (Å), α, β, γ (°)	81.149, 85.713, 49.167, 90.00, 90.00, 90.00
R / Rfree (%)	17.4 / 22.2

The structure of MSRB3 - Aa 1-137 also contains other interesting chemical elements:

Arsenic	(As)	2 atoms
Chlorine	(Cl)	1 atom

The binding sites of Zinc atom in the MSRB3 - Aa 1-137 (pdb code 6qa0). This binding sites where shown within 5.0 Angstroms radius around Zinc atom.
In total 2 binding sites of Zinc where determined in the MSRB3 - Aa 1-137, PDB code: 6qa0:
Jump to Zinc binding site number: 1; 2;

Zinc binding site 1 out of 2 in the MSRB3 - Aa 1-137


Mono view


Stereo pair view

A full contact list of Zinc with other atoms in the Zn binding site number 1 of MSRB3 - Aa 1-137 within 5.0Å range: probe atom residue distance (Å) B Occ A:Zn203 b:21.4 occ:1.00 SG A:CYS57 2.3 22.5 1.0 SG A:CYS106 2.3 20.4 1.0 SG A:CYS103 2.4 22.3 1.0 SG A:CYS54 2.4 20.2 1.0 CB A:CYS103 3.2 18.7 1.0 CB A:CYS54 3.2 21.9 1.0 CB A:CYS57 3.3 26.6 1.0 CB A:CYS106 3.4 26.1 1.0 N A:CYS106 3.8 21.3 1.0 N A:CYS57 3.8 22.7 1.0 CA A:CYS57 4.1 21.9 1.0 CA A:CYS106 4.2 20.9 1.0 CB A:ALA108 4.5 17.5 1.0 CB A:GLN105 4.6 25.2 1.0 CB A:VAL56 4.6 18.6 1.0 CA A:CYS103 4.7 18.9 1.0 CA A:CYS54 4.7 19.1 1.0 C A:GLN105 4.8 26.3 1.0 C A:CYS106 4.8 20.6 1.0 OG1 A:THR59 4.8 32.7 1.0 C A:CYS57 4.9 22.3 1.0 C A:VAL56 4.9 24.0 1.0 N A:ALA108 4.9 21.3 1.0 N A:GLY107 5.0 21.8 1.0 N A:GLY58 5.0 22.1 1.0

Zinc binding site 2 out of 2 in the MSRB3 - Aa 1-137


Mono view


Stereo pair view

A full contact list of Zinc with other atoms in the Zn binding site number 2 of MSRB3 - Aa 1-137 within 5.0Å range: probe atom residue distance (Å) B Occ B:Zn201 b:20.8 occ:1.00 SG B:CYS106 2.3 19.4 1.0 SG B:CYS57 2.4 21.0 1.0 SG B:CYS103 2.4 21.4 1.0 SG B:CYS54 2.4 19.4 1.0 CB B:CYS54 3.2 19.7 1.0 CB B:CYS103 3.2 20.2 1.0 CB B:CYS57 3.3 19.3 1.0 CB B:CYS106 3.4 18.2 1.0 N B:CYS57 3.8 18.0 1.0 N B:CYS106 3.9 21.1 1.0 CA B:CYS57 4.1 19.9 1.0 CA B:CYS106 4.2 17.9 1.0 CB B:ALA108 4.5 18.6 1.0 CB B:VAL56 4.6 19.6 1.0 CA B:CYS103 4.7 22.2 1.0 CA B:CYS54 4.7 18.3 1.0 C B:CYS106 4.8 19.2 1.0 C B:CYS57 4.8 21.9 1.0 CB B:GLN105 4.8 21.4 1.0 C B:VAL56 4.8 20.6 1.0 C B:GLN105 4.9 23.5 1.0 N B:GLY107 4.9 19.2 1.0 OG1 B:THR59 4.9 23.3 1.0 N B:ALA108 4.9 18.8 1.0 N B:GLY58 5.0 23.4 1.0 CB B:THR59 5.0 22.1 1.0

G.Javitt, C.Zhenbo, N.Bulleid, D.Fass. Structure of A Human Endoplasmic Reticulum Methionine Sulfoxide Reductase To Be Published.