Iron in PDB 7tpx: Selenium-Free Nitrogenase Fe Protein (AV2) From A. Vinelandii

All present enzymatic activity of Selenium-Free Nitrogenase Fe Protein (AV2) From A. Vinelandii:
1.18.6.1;

The structure of Selenium-Free Nitrogenase Fe Protein (AV2) From A. Vinelandii, PDB code: 7tpx was solved by T.M.Buscagan, J.T.Kaiser, D.C.Rees, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	45.59 / 1.35
Space group	P 2 21 21
Cell size a, b, c (Å), α, β, γ (°)	45.593, 74.258, 74.446, 90, 90, 90
R / Rfree (%)	17.6 / 19.5

The structure of Selenium-Free Nitrogenase Fe Protein (AV2) From A. Vinelandii also contains other interesting chemical elements:

Magnesium

(Mg)

1 atom

The binding sites of Iron atom in the Selenium-Free Nitrogenase Fe Protein (AV2) From A. Vinelandii (pdb code 7tpx). This binding sites where shown within 5.0 Angstroms radius around Iron atom.
In total 2 binding sites of Iron where determined in the Selenium-Free Nitrogenase Fe Protein (AV2) From A. Vinelandii, PDB code: 7tpx:
Jump to Iron binding site number: 1; 2;

Iron binding site 1 out of 2 in the Selenium-Free Nitrogenase Fe Protein (AV2) From A. Vinelandii


Mono view


Stereo pair view

A full contact list of Iron with other atoms in the Fe binding site number 1 of Selenium-Free Nitrogenase Fe Protein (AV2) From A. Vinelandii within 5.0Å range: probe atom residue distance (Å) B Occ A:Fe301 b:16.7 occ:1.00 FE1 A:SF4301 0.0 16.7 1.0 S4 A:SF4301 2.3 16.6 1.0 SG A:CYS97 2.3 19.0 1.0 S3 A:SF4301 2.3 17.3 1.0 FE2 A:SF4301 2.7 17.0 1.0 CB A:CYS97 3.3 19.8 1.0 CA A:CYS97 3.8 19.4 1.0 N A:ALA98 4.1 15.5 1.0 C A:CYS97 4.2 17.5 1.0 CA A:GLY133 4.5 18.1 1.0 N A:GLY99 4.7 14.8 1.0 N A:GLY133 4.8 17.8 1.0 SG A:CYS132 4.9 18.7 1.0 O A:HOH483 4.9 20.2 1.0

Iron binding site 2 out of 2 in the Selenium-Free Nitrogenase Fe Protein (AV2) From A. Vinelandii


Mono view


Stereo pair view

A full contact list of Iron with other atoms in the Fe binding site number 2 of Selenium-Free Nitrogenase Fe Protein (AV2) From A. Vinelandii within 5.0Å range: probe atom residue distance (Å) B Occ A:Fe301 b:17.0 occ:1.00 FE2 A:SF4301 0.0 17.0 1.0 S3 A:SF4301 2.3 17.3 1.0 SG A:CYS132 2.3 18.7 1.0 S4 A:SF4301 2.3 16.6 1.0 FE1 A:SF4301 2.7 16.7 1.0 CB A:CYS132 3.4 17.4 1.0 C A:CYS132 4.1 17.9 1.0 O A:CYS132 4.2 18.1 1.0 CG2 A:VAL130 4.3 18.1 1.0 CA A:CYS132 4.3 15.3 1.0 N A:GLY133 4.4 17.8 1.0 SG A:CYS97 4.8 19.0 1.0 CB A:VAL130 4.8 17.9 1.0 N A:CYS132 4.9 16.3 1.0 CA A:GLY133 4.9 18.1 1.0

T.M.Buscagan, J.T.Kaiser, D.C.Rees. Selenocyanate Derived Se-Incorporation Into the Nitrogenase Fe Protein Cluster. Elife V. 11 2022.
ISSN: ESSN 2050-084X
PubMed: 35904245
DOI: 10.7554/ELIFE.79311