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Iron in PDB 7tpn: Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (11 Mm Ksecn)

Enzymatic activity of Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (11 Mm Ksecn)

All present enzymatic activity of Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (11 Mm Ksecn):
1.18.6.1;

Protein crystallography data

The structure of Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (11 Mm Ksecn), PDB code: 7tpn 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) 46.00 / 1.38
Space group P 2 21 21
Cell size a, b, c (Å), α, β, γ (°) 45.996, 74.633, 75.137, 90, 90, 90
R / Rfree (%) 17.6 / 19.7

Other elements in 7tpn:

The structure of Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (11 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 (11 Mm Ksecn) (pdb code 7tpn). 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 (11 Mm Ksecn), PDB code: 7tpn:
Jump to Iron binding site number: 1; 2; 3; 4;

Iron binding site 1 out of 4 in 7tpn

Go back to Iron Binding Sites List in 7tpn
Iron binding site 1 out of 4 in the Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (11 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 (11 Mm Ksecn) within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Fe301

b:16.3
occ:0.92
 FE1 A:SF4301 0.0 16.3 0.9
FE1 A:SFS302 0.0 16.3 0.1
S4 A:SF4301 2.3 16.3 1.0
SG A:CYS97 2.3 18.8 1.0
S3 A:SF4301 2.3 16.3 0.9
SE4 A:SFS302 2.4 16.3 0.0
SE3 A:SFS302 2.4 16.3 0.1
FE2 A:SF4301 2.7 16.3 1.0
FE2 A:SFS302 2.7 16.3 0.0
CB A:CYS97 3.3 20.7 1.0
CA A:CYS97 3.8 18.6 1.0
N A:ALA98 4.2 14.9 1.0
C A:CYS97 4.3 16.6 1.0
CA A:GLY133 4.5 19.6 1.0
N A:GLY99 4.7 15.2 1.0
N A:GLY133 4.8 17.5 1.0
SG A:CYS132 4.8 18.2 1.0
O A:HOH519 4.9 21.1 1.0

Iron binding site 2 out of 4 in 7tpn

Go back to Iron Binding Sites List in 7tpn
Iron binding site 2 out of 4 in the Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (11 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 (11 Mm Ksecn) within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Fe301

b:16.3
occ:0.98
 FE2 A:SF4301 0.0 16.3 1.0
FE2 A:SFS302 0.0 16.3 0.0
SG A:CYS132 2.3 18.2 1.0
S3 A:SF4301 2.3 16.3 0.9
S4 A:SF4301 2.3 16.3 1.0
SE3 A:SFS302 2.4 16.3 0.1
SE4 A:SFS302 2.4 16.3 0.0
FE1 A:SF4301 2.7 16.3 0.9
FE1 A:SFS302 2.7 16.3 0.1
CB A:CYS132 3.4 17.4 1.0
C A:CYS132 4.1 17.6 1.0
O A:CYS132 4.2 17.2 1.0
CG2 A:VAL130 4.3 17.4 1.0
CA A:CYS132 4.3 16.7 1.0
N A:GLY133 4.4 17.5 1.0
SG A:CYS97 4.8 18.8 1.0
CB A:VAL130 4.8 18.0 1.0
CA A:GLY133 4.8 19.6 1.0
N A:CYS132 4.9 15.1 1.0

Iron binding site 3 out of 4 in 7tpn

Go back to Iron Binding Sites List in 7tpn
Iron binding site 3 out of 4 in the Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (11 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 (11 Mm Ksecn) within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Fe302

b:16.3
occ:0.08
 FE1 A:SF4301 0.0 16.3 0.9
FE1 A:SFS302 0.0 16.3 0.1
S4 A:SF4301 2.3 16.3 1.0
SG A:CYS97 2.3 18.8 1.0
S3 A:SF4301 2.3 16.3 0.9
SE4 A:SFS302 2.4 16.3 0.0
SE3 A:SFS302 2.4 16.3 0.1
FE2 A:SF4301 2.7 16.3 1.0
FE2 A:SFS302 2.7 16.3 0.0
CB A:CYS97 3.3 20.7 1.0
CA A:CYS97 3.8 18.6 1.0
N A:ALA98 4.2 14.9 1.0
C A:CYS97 4.3 16.6 1.0
CA A:GLY133 4.5 19.6 1.0
N A:GLY99 4.7 15.2 1.0
N A:GLY133 4.8 17.5 1.0
SG A:CYS132 4.8 18.2 1.0
O A:HOH519 4.9 21.1 1.0

Iron binding site 4 out of 4 in 7tpn

Go back to Iron Binding Sites List in 7tpn
Iron binding site 4 out of 4 in the Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (11 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 (11 Mm Ksecn) within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Fe302

b:16.3
occ:0.02
 FE2 A:SF4301 0.0 16.3 1.0
FE2 A:SFS302 0.0 16.3 0.0
SG A:CYS132 2.3 18.2 1.0
S3 A:SF4301 2.3 16.3 0.9
S4 A:SF4301 2.3 16.3 1.0
SE3 A:SFS302 2.4 16.3 0.1
SE4 A:SFS302 2.4 16.3 0.0
FE1 A:SF4301 2.7 16.3 0.9
FE1 A:SFS302 2.7 16.3 0.1
CB A:CYS132 3.4 17.4 1.0
C A:CYS132 4.1 17.6 1.0
O A:CYS132 4.2 17.2 1.0
CG2 A:VAL130 4.3 17.4 1.0
CA A:CYS132 4.3 16.7 1.0
N A:GLY133 4.4 17.5 1.0
SG A:CYS97 4.8 18.8 1.0
CB A:VAL130 4.8 18.0 1.0
CA A:GLY133 4.8 19.6 1.0
N A:CYS132 4.9 15.1 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 06:01:31 2025

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