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Arsenic in PDB 1sk0: Arsenate Reductase R60A Mutant +0.4M Arsenite From E. Coli

Enzymatic activity of Arsenate Reductase R60A Mutant +0.4M Arsenite From E. Coli

All present enzymatic activity of Arsenate Reductase R60A Mutant +0.4M Arsenite From E. Coli:
1.20.4.1;

Protein crystallography data

The structure of Arsenate Reductase R60A Mutant +0.4M Arsenite From E. Coli, PDB code: 1sk0 was solved by S.Demel, B.F.Edwards, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 20.00 / 1.80
Space group P 61 2 2
Cell size a, b, c (Å), α, β, γ (°) 86.560, 86.560, 115.990, 90.00, 90.00, 120.00
R / Rfree (%) n/a / 23.9

Other elements in 1sk0:

The structure of Arsenate Reductase R60A Mutant +0.4M Arsenite From E. Coli also contains other interesting chemical elements:

Caesium (Cs) 4 atoms

Arsenic Binding Sites:

The binding sites of Arsenic atom in the Arsenate Reductase R60A Mutant +0.4M Arsenite From E. Coli (pdb code 1sk0). This binding sites where shown within 5.0 Angstroms radius around Arsenic atom.
In total 2 binding sites of Arsenic where determined in the Arsenate Reductase R60A Mutant +0.4M Arsenite From E. Coli, PDB code: 1sk0:
Jump to Arsenic binding site number: 1; 2;

Arsenic binding site 1 out of 2 in 1sk0

Go back to Arsenic Binding Sites List in 1sk0
Arsenic binding site 1 out of 2 in the Arsenate Reductase R60A Mutant +0.4M Arsenite From E. Coli


Mono view


Stereo pair view

A full contact list of Arsenic with other atoms in the As binding site number 1 of Arsenate Reductase R60A Mutant +0.4M Arsenite From E. Coli within 5.0Å range:
probe atom residue distance (Å) B Occ
A:As12

b:34.1
occ:0.54
AS A:CZ212 0.0 34.1 0.5
O1 A:CZ212 1.8 32.5 0.5
O2 A:CZ212 1.8 62.1 0.5
SG A:CZ212 2.2 16.1 0.5
SG A:CZ212 2.3 26.9 0.5
CB A:CZ212 3.1 9.0 0.5
CB A:CZ212 3.1 20.0 0.5
NH2 A:ARG94 3.1 54.6 0.8
O2 A:TAS201 3.3 22.9 0.4
AS A:TAS201 3.4 41.8 0.4
CZ A:ARG94 3.6 43.6 0.8
CA A:CZ212 3.7 12.0 1.0
NE A:ARG94 4.0 26.9 0.8
O3 A:TAS201 4.1 21.2 0.4
C A:CZ212 4.1 16.4 1.0
N A:GLY13 4.2 18.4 1.0
NH1 A:ARG107 4.2 18.1 1.0
O A:HOH1229 4.2 41.9 1.0
NH1 A:ARG94 4.2 35.9 0.8
OG1 A:THR14 4.4 17.7 1.0
N A:THR14 4.5 16.2 1.0
NH2 A:ARG107 4.7 27.1 1.0
CB A:THR14 4.7 22.2 1.0
CZ A:ARG107 4.9 27.6 1.0
O A:CZ212 4.9 16.6 1.0
O1 A:TAS201 5.0 28.7 0.4

Arsenic binding site 2 out of 2 in 1sk0

Go back to Arsenic Binding Sites List in 1sk0
Arsenic binding site 2 out of 2 in the Arsenate Reductase R60A Mutant +0.4M Arsenite From E. Coli


Mono view


Stereo pair view

A full contact list of Arsenic with other atoms in the As binding site number 2 of Arsenate Reductase R60A Mutant +0.4M Arsenite From E. Coli within 5.0Å range:
probe atom residue distance (Å) B Occ
A:As201

b:41.8
occ:0.43
AS A:TAS201 0.0 41.8 0.4
O3 A:TAS201 1.8 21.2 0.4
O2 A:TAS201 1.8 22.9 0.4
O1 A:TAS201 1.8 28.7 0.4
AS A:CZ212 3.4 34.1 0.5
O1 A:CZ212 3.5 32.5 0.5
N A:GLY13 3.6 18.4 1.0
O A:HOH1028 4.0 19.8 1.0
CA A:GLY13 4.2 17.6 1.0
O A:HOH1096 4.5 22.6 1.0
C A:CZ212 4.5 16.4 1.0
N A:THR14 4.6 16.2 1.0
CA A:CZ212 4.7 12.0 1.0
SG A:CZ212 4.9 16.1 0.5
C A:GLY13 4.9 14.0 1.0
O2 A:CZ212 4.9 62.1 0.5
SG A:CZ212 4.9 26.9 0.5
OG1 A:THR14 5.0 17.7 1.0

Reference:

S.Demel, J.Shi, P.Martin, B.P.Rosen, B.F.Edwards. Arginine 60 in the Arsc Arsenate Reductase of E. Coli Plasmid R773 Determines the Chemical Nature of the Bound As(III) Product. Protein Sci. V. 13 2330 2004.
ISSN: ISSN 0961-8368
PubMed: 15295115
DOI: 10.1110/PS.04787204
Page generated: Wed Jul 10 11:13:16 2024

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