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Calcium in PDB 1g20: Mgatp-Bound and Nucleotide-Free Structures of A Nitrogenase Protein Complex Between LEU127DEL-Fe Protein and the Mofe Protein

Enzymatic activity of Mgatp-Bound and Nucleotide-Free Structures of A Nitrogenase Protein Complex Between LEU127DEL-Fe Protein and the Mofe Protein

All present enzymatic activity of Mgatp-Bound and Nucleotide-Free Structures of A Nitrogenase Protein Complex Between LEU127DEL-Fe Protein and the Mofe Protein:
1.18.6.1;

Protein crystallography data

The structure of Mgatp-Bound and Nucleotide-Free Structures of A Nitrogenase Protein Complex Between LEU127DEL-Fe Protein and the Mofe Protein, PDB code: 1g20 was solved by H.-J.Chiu, J.W.Peters, W.N.Lanzilotta, M.J.Ryle, L.C.Seefeldt, J.B.Howard, D.C.Rees, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 20.00 / 2.20
Space group C 1 2 1
Cell size a, b, c (Å), α, β, γ (°) 264.240, 111.460, 121.590, 90.00, 97.40, 90.00
R / Rfree (%) 21.8 / 25.5

Other elements in 1g20:

The structure of Mgatp-Bound and Nucleotide-Free Structures of A Nitrogenase Protein Complex Between LEU127DEL-Fe Protein and the Mofe Protein also contains other interesting chemical elements:

Molybdenum (Mo) 2 atoms
Iron (Fe) 38 atoms

Calcium Binding Sites:

The binding sites of Calcium atom in the Mgatp-Bound and Nucleotide-Free Structures of A Nitrogenase Protein Complex Between LEU127DEL-Fe Protein and the Mofe Protein (pdb code 1g20). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total 2 binding sites of Calcium where determined in the Mgatp-Bound and Nucleotide-Free Structures of A Nitrogenase Protein Complex Between LEU127DEL-Fe Protein and the Mofe Protein, PDB code: 1g20:
Jump to Calcium binding site number: 1; 2;

Calcium binding site 1 out of 2 in 1g20

Go back to Calcium Binding Sites List in 1g20
Calcium binding site 1 out of 2 in the Mgatp-Bound and Nucleotide-Free Structures of A Nitrogenase Protein Complex Between LEU127DEL-Fe Protein and the Mofe Protein


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Mgatp-Bound and Nucleotide-Free Structures of A Nitrogenase Protein Complex Between LEU127DEL-Fe Protein and the Mofe Protein within 5.0Å range:
probe atom residue distance (Å) B Occ
B:Ca524

b:42.2
occ:1.00
 O D:ARG108 2.2 29.0 1.0
OE2 D:GLU109 2.3 31.4 1.0
O D:HOH3500 2.4 42.7 1.0
OD1 B:ASP357 2.4 42.9 1.0
OD1 B:ASP353 2.5 32.1 1.0
O B:HOH1500 2.5 31.9 1.0
CG B:ASP357 3.1 40.9 1.0
OD2 B:ASP353 3.1 28.1 1.0
OD2 B:ASP357 3.2 41.9 1.0
CG B:ASP353 3.2 28.6 1.0
C D:ARG108 3.4 27.2 1.0
CD D:GLU109 3.5 32.2 1.0
CG D:GLU109 4.0 31.2 1.0
CB D:ARG108 4.1 23.7 1.0
N D:GLU109 4.3 28.4 1.0
CA D:ARG108 4.3 26.3 1.0
CD2 C:PHE429 4.4 28.0 1.0
CA D:GLU109 4.4 29.7 1.0
O D:PHE107 4.4 24.9 1.0
O D:HOH3528 4.5 21.9 1.0
OE1 D:GLU109 4.5 35.1 1.0
CE C:LYS433 4.5 44.0 1.0
CB B:ASP357 4.6 38.1 1.0
NZ C:LYS433 4.6 43.0 1.0
CB B:ASP353 4.6 26.6 1.0
O B:ASP353 4.7 23.2 1.0
O D:HOH3565 4.7 30.9 1.0
CB D:GLU109 4.8 27.5 1.0
C B:ASP353 4.9 25.7 1.0
CE2 C:PHE429 4.9 27.7 1.0

Calcium binding site 2 out of 2 in 1g20

Go back to Calcium Binding Sites List in 1g20
Calcium binding site 2 out of 2 in the Mgatp-Bound and Nucleotide-Free Structures of A Nitrogenase Protein Complex Between LEU127DEL-Fe Protein and the Mofe Protein


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 2 of Mgatp-Bound and Nucleotide-Free Structures of A Nitrogenase Protein Complex Between LEU127DEL-Fe Protein and the Mofe Protein within 5.0Å range:
probe atom residue distance (Å) B Occ
D:Ca524

b:24.3
occ:1.00
 O B:ARG108 2.2 22.6 1.0
OD1 D:ASP357 2.2 31.5 1.0
OD1 D:ASP353 2.3 26.1 1.0
OE2 B:GLU109 2.3 36.5 1.0
O B:HOH1499 2.4 33.0 1.0
O D:HOH3499 2.4 28.4 1.0
CG D:ASP357 3.0 27.5 1.0
OD2 D:ASP357 3.1 29.9 1.0
CG D:ASP353 3.1 24.2 1.0
OD2 D:ASP353 3.3 26.2 1.0
C B:ARG108 3.4 20.1 1.0
CD B:GLU109 3.4 32.6 1.0
CG B:GLU109 3.9 30.1 1.0
CB B:ARG108 4.0 17.7 1.0
N B:GLU109 4.3 20.6 1.0
CA B:ARG108 4.3 20.2 1.0
CA B:GLU109 4.4 22.9 1.0
CB D:ASP357 4.4 25.6 1.0
O D:ASP353 4.4 16.9 1.0
O B:PHE107 4.4 21.2 1.0
OE1 B:GLU109 4.5 36.2 1.0
O B:HOH1686 4.5 34.9 1.0
O B:HOH1561 4.5 25.9 1.0
CB D:ASP353 4.5 22.8 1.0
NZ A:LYS433 4.7 18.9 1.0
CD2 A:PHE429 4.7 21.8 1.0
CB B:GLU109 4.8 23.8 1.0
C D:ASP353 4.8 19.8 1.0
CE A:LYS433 4.8 19.7 1.0
O B:HOH1598 4.8 29.6 1.0

Reference:

H.Chiu, J.W.Peters, W.N.Lanzilotta, M.J.Ryle, L.C.Seefeldt, J.B.Howard, D.C.Rees. Mgatp-Bound and Nucleotide-Free Structures of A Nitrogenase Protein Complex Between the Leu 127 Delta-Fe-Protein and the Mofe-Protein. Biochemistry V. 40 641 2001.
ISSN: ISSN 0006-2960
PubMed: 11170380
DOI: 10.1021/BI001645E
Page generated: Thu Jul 11 08:27:41 2024

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