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Iron in PDB 7tqe: Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn)

Enzymatic activity of Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn)

All present enzymatic activity of Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn):
1.18.6.1;

Protein crystallography data

The structure of Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn), PDB code: 7tqe 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) 37.38 / 1.59
Space group P 2 21 21
Cell size a, b, c (Å), α, β, γ (°) 45.896, 74.673, 74.754, 90, 90, 90
R / Rfree (%) 17.3 / 19.9

Other elements in 7tqe:

The structure of Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn) also contains other interesting chemical elements:

Magnesium (Mg) 1 atom

Iron Binding Sites:

The binding sites of Iron atom in the Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn) (pdb code 7tqe). This binding sites where shown within 5.0 Angstroms radius around Iron atom.
In total 4 binding sites of Iron where determined in the Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn), PDB code: 7tqe:
Jump to Iron binding site number: 1; 2; 3; 4;

Iron binding site 1 out of 4 in 7tqe

Go back to Iron Binding Sites List in 7tqe
Iron binding site 1 out of 4 in the Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn)


Mono view


Stereo pair view

A full contact list of Iron with other atoms in the Fe binding site number 1 of Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn) within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Fe301

b:21.3
occ:0.46
 FE1 A:SF4301 0.0 21.3 0.5
FE1 A:SFS302 0.0 21.3 0.5
S4 A:SF4301 2.3 21.3 0.7
SG A:CYS97 2.3 23.6 1.0
S3 A:SF4301 2.3 21.3 0.5
SE4 A:SFS302 2.4 21.3 0.3
SE3 A:SFS302 2.4 21.3 0.5
FE2 A:SF4301 2.7 21.3 0.7
FE2 A:SFS302 2.7 21.3 0.3
CB A:CYS97 3.3 24.6 1.0
CA A:CYS97 3.8 22.5 1.0
N A:ALA98 4.1 20.0 1.0
C A:CYS97 4.3 21.3 1.0
CA A:GLY133 4.4 23.1 1.0
N A:GLY99 4.8 19.8 1.0
N A:GLY133 4.8 23.5 1.0
SG A:CYS132 4.9 22.4 1.0

Iron binding site 2 out of 4 in 7tqe

Go back to Iron Binding Sites List in 7tqe
Iron binding site 2 out of 4 in the Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn)


Mono view


Stereo pair view

A full contact list of Iron with other atoms in the Fe binding site number 2 of Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn) within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Fe301

b:21.3
occ:0.68
 FE2 A:SF4301 0.0 21.3 0.7
FE2 A:SFS302 0.0 21.3 0.3
SG A:CYS132 2.3 22.4 1.0
S3 A:SF4301 2.3 21.3 0.5
S4 A:SF4301 2.3 21.3 0.7
SE3 A:SFS302 2.4 21.3 0.5
SE4 A:SFS302 2.4 21.3 0.3
FE1 A:SF4301 2.7 21.3 0.5
FE1 A:SFS302 2.7 21.3 0.5
CB A:CYS132 3.5 23.8 1.0
C A:CYS132 4.0 23.1 1.0
O A:CYS132 4.2 21.6 1.0
CG2 A:VAL130 4.3 22.8 1.0
N A:GLY133 4.3 23.5 1.0
CA A:CYS132 4.3 21.1 1.0
CA A:GLY133 4.8 23.1 1.0
SG A:CYS97 4.8 23.6 1.0
CB A:VAL130 4.8 24.8 1.0
N A:CYS132 4.9 19.7 1.0

Iron binding site 3 out of 4 in 7tqe

Go back to Iron Binding Sites List in 7tqe
Iron binding site 3 out of 4 in the Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn)


Mono view


Stereo pair view

A full contact list of Iron with other atoms in the Fe binding site number 3 of Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn) within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Fe302

b:21.3
occ:0.54
 FE1 A:SF4301 0.0 21.3 0.5
FE1 A:SFS302 0.0 21.3 0.5
S4 A:SF4301 2.3 21.3 0.7
SG A:CYS97 2.3 23.6 1.0
S3 A:SF4301 2.3 21.3 0.5
SE4 A:SFS302 2.4 21.3 0.3
SE3 A:SFS302 2.4 21.3 0.5
FE2 A:SF4301 2.7 21.3 0.7
FE2 A:SFS302 2.7 21.3 0.3
CB A:CYS97 3.3 24.6 1.0
CA A:CYS97 3.8 22.5 1.0
N A:ALA98 4.1 20.0 1.0
C A:CYS97 4.3 21.3 1.0
CA A:GLY133 4.4 23.1 1.0
N A:GLY99 4.8 19.8 1.0
N A:GLY133 4.8 23.5 1.0
SG A:CYS132 4.9 22.4 1.0

Iron binding site 4 out of 4 in 7tqe

Go back to Iron Binding Sites List in 7tqe
Iron binding site 4 out of 4 in the Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn)


Mono view


Stereo pair view

A full contact list of Iron with other atoms in the Fe binding site number 4 of Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn) within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Fe302

b:21.3
occ:0.32
 FE2 A:SF4301 0.0 21.3 0.7
FE2 A:SFS302 0.0 21.3 0.3
SG A:CYS132 2.3 22.4 1.0
S3 A:SF4301 2.3 21.3 0.5
S4 A:SF4301 2.3 21.3 0.7
SE3 A:SFS302 2.4 21.3 0.5
SE4 A:SFS302 2.4 21.3 0.3
FE1 A:SF4301 2.7 21.3 0.5
FE1 A:SFS302 2.7 21.3 0.5
CB A:CYS132 3.5 23.8 1.0
C A:CYS132 4.0 23.1 1.0
O A:CYS132 4.2 21.6 1.0
CG2 A:VAL130 4.3 22.8 1.0
N A:GLY133 4.3 23.5 1.0
CA A:CYS132 4.3 21.1 1.0
CA A:GLY133 4.8 23.1 1.0
SG A:CYS97 4.8 23.6 1.0
CB A:VAL130 4.8 24.8 1.0
N A:CYS132 4.9 19.7 1.0

Reference:

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
Page generated: Thu Aug 7 06:04:38 2025

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