Magnesium in PDB 7tq9: Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn, with AV1)

Enzymatic activity of Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn, with AV1)

All present enzymatic activity of Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn, with AV1):
1.18.6.1;

Protein crystallography data

The structure of Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn, with AV1), PDB code: 7tq9 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)*	39.02 / 1.60
*Space group*	P 2 2₁ 2₁
*Cell size a, b, c (Å), α, β, γ (°)*	45.835, 74.406, 74.689, 90, 90, 90
*R / R_free (%)*	17.1 / 19.4

Other elements in 7tq9:

The structure of Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn, with AV1) also contains other interesting chemical elements:

Iron

(Fe)

4 atoms

Magnesium Binding Sites:

The binding sites of Magnesium atom in the Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn, with AV1) (pdb code 7tq9). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total only one binding site of Magnesium was determined in the Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn, with AV1), PDB code: 7tq9:

Magnesium binding site 1 out of 1 in 7tq9

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Magnesium Binding Sites List in 7tq9

Magnesium binding site 1 out of 1 in the Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn, with AV1)

Mono view

Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Selenium-Incorporated Nitrogenase Fe Protein (AV2-Se) From A. Vinelandii (22 Mm Ksecn, with AV1) within 5.0Å range:

probe	atom	residue	distance (Å)	B	Occ
A:Mg303 b:17.9 occ:1.00	OG	A:SER16	2.0	16.7	1.0
	O	A:HOH450	2.1	17.8	1.0
	O3B	A:ADP304	2.1	17.6	1.0
	O	A:HOH461	2.1	18.9	1.0
	O	A:HOH443	2.2	18.4	1.0
	O	A:HOH464	2.2	19.0	1.0
	CB	A:SER16	3.1	15.6	1.0
	PB	A:ADP304	3.3	17.5	1.0
	O1B	A:ADP304	3.6	19.3	1.0
	OD2	A:ASP39	3.8	20.3	1.0
	N	A:SER16	3.9	16.7	1.0
	OD1	A:ASP43	3.9	23.1	1.0
	OD2	A:ASP125	4.1	21.4	1.0
	CA	A:SER16	4.1	16.8	1.0
	O1A	A:ADP304	4.2	19.3	1.0
	OG	A:SER44	4.2	22.0	1.0
	OD1	A:ASP125	4.3	20.3	1.0
	O3A	A:ADP304	4.3	18.1	1.0
	O2B	A:ADP304	4.4	16.0	1.0
	CG	A:ASP39	4.5	19.6	1.0
	O	A:HOH495	4.6	24.5	1.0
	PA	A:ADP304	4.6	18.4	1.0
	CG	A:ASP125	4.6	19.1	1.0
	O2A	A:ADP304	4.8	19.9	1.0
	CB	A:LYS15	4.8	16.3	1.0
	CB	A:ASP39	4.8	18.7	1.0
	CE	A:LYS15	4.9	19.4	1.0
	C	A:LYS15	4.9	16.5	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 Oct 3 09:24:33 2024

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