Atomistry » Potassium » PDB 1w2b-1yj9 » 1xrb
Atomistry »
  Potassium »
    PDB 1w2b-1yj9 »
      1xrb »

Potassium 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:

Magnesium (Mg) 2 atoms

Potassium Binding Sites:

The binding sites of Potassium 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 Potassium atom.
In total 2 binding sites of Potassium 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 Potassium binding site number: 1; 2;

Potassium binding site 1 out of 2 in 1xrb

Go back to Potassium Binding Sites List in 1xrb
Potassium 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 Potassium with other atoms in the K 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:K413

b:52.9
occ:1.00
OE2 A:GLU42 2.8 33.5 1.0
OE1 A:GLU42 2.9 21.2 1.0
O A:SER263 3.1 24.4 1.0
CD A:GLU42 3.1 22.1 1.0
CE A:LYS265 3.5 29.0 1.0
HG1 A:THR242 3.7 17.6 0.0
CG A:LYS265 3.8 15.3 1.0
OG1 A:THR242 3.8 16.6 1.0
CD A:LYS265 4.1 17.9 1.0
C A:SER263 4.3 21.2 1.0
CG A:GLU42 4.3 14.2 1.0
O2 A:PO4385 4.4 85.7 1.0
NZ A:LYS265 4.5 34.1 1.0
HZ3 A:LYS265 4.5 17.6 0.0
CB A:ALA261 4.6 15.8 1.0
O4 A:PO4385 4.6 80.0 1.0
O A:CYS41 4.6 23.1 1.0
HZ1 A:LYS265 4.7 17.6 0.0
C A:GLY264 4.8 24.3 1.0
CA A:GLY264 4.8 20.2 1.0
H A:CYS41 4.8 17.6 0.0
O A:GLY264 4.9 27.4 1.0

Potassium binding site 2 out of 2 in 1xrb

Go back to Potassium Binding Sites List in 1xrb
Potassium 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 Potassium with other atoms in the K 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:K414

b:68.5
occ:0.50
O A:GLY243 2.6 16.9 1.0
CD1 A:ILE246 3.3 41.6 1.0
C A:GLY243 3.8 18.0 1.0
CA A:ARG244 4.1 18.8 1.0
CG1 A:ILE246 4.1 26.1 1.0
CD A:ARG244 4.1 10.9 1.0
CB A:ILE246 4.1 19.8 1.0
O A:ARG244 4.2 28.3 1.0
H A:ILE246 4.3 17.6 0.0
N A:ARG244 4.4 17.6 1.0
C A:ARG244 4.5 22.4 1.0
CG2 A:ILE246 4.5 6.1 1.0
CG A:ARG244 4.7 8.2 1.0
O A:GLY259 4.8 32.8 1.0
CA A:GLY243 4.9 18.2 1.0
CB A:ARG244 4.9 15.1 1.0

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: Sun Dec 13 23:05:21 2020

Last articles

Zn in 8WB0
Zn in 8WAX
Zn in 8WAU
Zn in 8WAZ
Zn in 8WAY
Zn in 8WAV
Zn in 8WAW
Zn in 8WAT
Zn in 8W7M
Zn in 8WD3
© Copyright 2008-2020 by atomistry.com
Home   |    Site Map   |    Copyright   |    Contact us   |    Privacy