Zinc in PDB 8bew: Cryo-Em Structure of the Electron Bifurcating Fe-Fe Hydrogenase Hydabc Complex From Thermoanaerobacter Kivui in the Oxidised State

All present enzymatic activity of Cryo-Em Structure of the Electron Bifurcating Fe-Fe Hydrogenase Hydabc Complex From Thermoanaerobacter Kivui in the Oxidised State:
1.12.1.3;

The structure of Cryo-Em Structure of the Electron Bifurcating Fe-Fe Hydrogenase Hydabc Complex From Thermoanaerobacter Kivui in the Oxidised State also contains other interesting chemical elements:

Iron

(Fe)

68 atoms

The binding sites of Zinc atom in the Cryo-Em Structure of the Electron Bifurcating Fe-Fe Hydrogenase Hydabc Complex From Thermoanaerobacter Kivui in the Oxidised State (pdb code 8bew). This binding sites where shown within 5.0 Angstroms radius around Zinc atom.
In total 2 binding sites of Zinc where determined in the Cryo-Em Structure of the Electron Bifurcating Fe-Fe Hydrogenase Hydabc Complex From Thermoanaerobacter Kivui in the Oxidised State, PDB code: 8bew:
Jump to Zinc binding site number: 1; 2;

Zinc binding site 1 out of 2 in the Cryo-Em Structure of the Electron Bifurcating Fe-Fe Hydrogenase Hydabc Complex From Thermoanaerobacter Kivui in the Oxidised State


Mono view


Stereo pair view

A full contact list of Zinc with other atoms in the Zn binding site number 1 of Cryo-Em Structure of the Electron Bifurcating Fe-Fe Hydrogenase Hydabc Complex From Thermoanaerobacter Kivui in the Oxidised State within 5.0Å range: probe atom residue distance (Å) B Occ B:Zn703 b:48.2 occ:1.00 NE2 B:HIS558 2.1 38.6 1.0 CE1 B:HIS558 2.2 38.6 1.0 SG B:CYS564 2.3 47.4 1.0 SG B:CYS471 2.3 42.6 1.0 SG B:CYS569 2.3 48.6 1.0 CB B:CYS471 2.9 42.6 1.0 CB B:CYS564 3.1 47.4 1.0 CD2 B:HIS558 3.5 38.6 1.0 ND1 B:HIS558 3.5 38.6 1.0 CB B:CYS569 3.6 48.6 1.0 CA B:CYS564 3.9 47.4 1.0 CG B:HIS558 4.1 38.6 1.0 N B:CYS569 4.2 48.6 1.0 CA B:CYS471 4.4 42.6 1.0 CD B:PRO565 4.5 46.8 1.0 CA B:CYS569 4.5 48.6 1.0 C B:CYS564 4.7 47.4 1.0 N B:PRO565 4.9 46.8 1.0 CB B:VAL473 5.0 38.2 1.0

Zinc binding site 2 out of 2 in the Cryo-Em Structure of the Electron Bifurcating Fe-Fe Hydrogenase Hydabc Complex From Thermoanaerobacter Kivui in the Oxidised State


Mono view


Stereo pair view

A full contact list of Zinc with other atoms in the Zn binding site number 2 of Cryo-Em Structure of the Electron Bifurcating Fe-Fe Hydrogenase Hydabc Complex From Thermoanaerobacter Kivui in the Oxidised State within 5.0Å range: probe atom residue distance (Å) B Occ E:Zn703 b:63.2 occ:1.00 NE2 E:HIS558 2.1 40.3 1.0 SG E:CYS564 2.3 52.2 1.0 SG E:CYS569 2.3 48.5 1.0 SG E:CYS471 2.3 44.9 1.0 CE1 E:HIS558 2.6 40.3 1.0 CB E:CYS471 2.9 44.9 1.0 CB E:CYS564 3.2 52.2 1.0 CD2 E:HIS558 3.4 40.3 1.0 CB E:CYS569 3.4 48.5 1.0 ND1 E:HIS558 3.9 40.3 1.0 CA E:CYS564 4.1 52.2 1.0 N E:CYS569 4.2 48.5 1.0 CG E:HIS558 4.2 40.3 1.0 CA E:CYS471 4.4 44.9 1.0 CA E:CYS569 4.4 48.5 1.0 C E:CYS564 4.9 52.2 1.0 CD E:PRO565 5.0 49.8 1.0

A.Kumar, J.M.Schuller. Molecular Basis of the Electron Bifurcation Mechanism in the [Fefe]-Hydrogenase Complex Hydabc J.Am.Chem.Soc. 2023.
ISSN: ESSN 1520-5126
DOI: 10.1021/JACS.2C11683