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Magnesium in PDB 1xrb: S-Adenosylmethionine Synthetase (Mat, Atp: L-Methionine S- Adenosyltransferase, E.C.2.5.1.6) in Which Met Residues Are Replaced with Selenomethionine Residues (Mse)

Enzymatic activity of S-Adenosylmethionine Synthetase (Mat, Atp: L-Methionine S- Adenosyltransferase, E.C.2.5.1.6) in Which Met Residues Are Replaced with Selenomethionine Residues (Mse)

All present enzymatic activity of S-Adenosylmethionine Synthetase (Mat, Atp: L-Methionine S- Adenosyltransferase, E.C.2.5.1.6) in Which Met Residues Are Replaced with Selenomethionine Residues (Mse):
2.5.1.6;

Protein crystallography data

The structure of S-Adenosylmethionine Synthetase (Mat, Atp: L-Methionine S- Adenosyltransferase, E.C.2.5.1.6) in Which Met Residues Are Replaced with Selenomethionine Residues (Mse), PDB code: 1xrb was solved by F.Takusagawa, S.Kamitori, S.Misaki, G.D.Markham, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 10.00 / 3.00
Space group P 62 2 2
Cell size a, b, c (Å), α, β, γ (°) 128.900, 128.900, 139.800, 90.00, 90.00, 120.00
R / Rfree (%) 18.8 / 26.5

Other elements in 1xrb:

The structure of S-Adenosylmethionine Synthetase (Mat, Atp: L-Methionine S- Adenosyltransferase, E.C.2.5.1.6) in Which Met Residues Are Replaced with Selenomethionine Residues (Mse) also contains other interesting chemical elements:

Potassium (K) 2 atoms

Magnesium Binding Sites:

The binding sites of Magnesium atom in the S-Adenosylmethionine Synthetase (Mat, Atp: L-Methionine S- Adenosyltransferase, E.C.2.5.1.6) in Which Met Residues Are Replaced with Selenomethionine Residues (Mse) (pdb code 1xrb). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total 2 binding sites of Magnesium where determined in the S-Adenosylmethionine Synthetase (Mat, Atp: L-Methionine S- Adenosyltransferase, E.C.2.5.1.6) in Which Met Residues Are Replaced with Selenomethionine Residues (Mse), PDB code: 1xrb:
Jump to Magnesium binding site number: 1; 2;

Magnesium binding site 1 out of 2 in 1xrb

Go back to Magnesium Binding Sites List in 1xrb
Magnesium binding site 1 out of 2 in the S-Adenosylmethionine Synthetase (Mat, Atp: L-Methionine S- Adenosyltransferase, E.C.2.5.1.6) in Which Met Residues Are Replaced with Selenomethionine Residues (Mse)


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of S-Adenosylmethionine Synthetase (Mat, Atp: L-Methionine S- Adenosyltransferase, E.C.2.5.1.6) in Which Met Residues Are Replaced with Selenomethionine Residues (Mse) within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Mg411

b:72.8
occ:1.00
O1 A:PO4384 2.1 61.5 1.0
OD1 A:ASP271 2.3 45.0 1.0
OD2 A:ASP271 2.4 53.8 1.0
CG A:ASP271 2.8 43.1 1.0
OD2 A:ASP118 2.9 57.4 1.0
P A:PO4384 3.4 57.6 1.0
O1 A:PO4385 3.5 86.8 1.0
O4 A:PO4384 3.7 62.1 1.0
O A:GLN119 4.1 32.7 1.0
O2 A:PO4384 4.1 56.0 1.0
CG A:ASP118 4.1 44.7 1.0
CB A:ASP271 4.3 30.9 1.0
HZ2 A:LYS265 4.3 17.6 0.0
O3 A:PO4384 4.5 57.6 1.0
HZ3 A:LYS265 4.7 17.6 0.0
P A:PO4385 4.7 87.1 1.0
O3 A:PO4385 4.9 86.1 1.0
CB A:ASP118 4.9 37.3 1.0

Magnesium binding site 2 out of 2 in 1xrb

Go back to Magnesium Binding Sites List in 1xrb
Magnesium binding site 2 out of 2 in the S-Adenosylmethionine Synthetase (Mat, Atp: L-Methionine S- Adenosyltransferase, E.C.2.5.1.6) in Which Met Residues Are Replaced with Selenomethionine Residues (Mse)


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 2 of S-Adenosylmethionine Synthetase (Mat, Atp: L-Methionine S- Adenosyltransferase, E.C.2.5.1.6) in Which Met Residues Are Replaced with Selenomethionine Residues (Mse) within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Mg412

b:71.2
occ:1.00
O3 A:PO4385 2.1 86.1 1.0
O4 A:PO4384 2.1 62.1 1.0
O3 A:PO4384 2.2 57.6 1.0
O2 A:PO4385 2.2 85.7 1.0
P A:PO4385 2.7 87.1 1.0
P A:PO4384 2.7 57.6 1.0
O1 A:PO4385 3.3 86.8 1.0
O1 A:PO4384 3.6 61.5 1.0
O2 A:PO4384 3.9 56.0 1.0
O4 A:PO4385 4.0 80.0 1.0
HZ3 A:LYS265 4.5 17.6 0.0

Reference:

F.Takusagawa, S.Kamitori, S.Misaki, G.D.Markham. Crystal Structure of S-Adenosylmethionine Synthetase. J.Biol.Chem. V. 271 136 1996.
ISSN: ISSN 0021-9258
PubMed: 8550549
DOI: 10.1074/JBC.271.1.136
Page generated: Tue Aug 13 18:22:19 2024

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