Magnesium in PDB 1tc2: Ternary Substrate Complex of the Hypoxanthine Phosphoribosyltransferase From Trypanosoma Cruzi
Enzymatic activity of Ternary Substrate Complex of the Hypoxanthine Phosphoribosyltransferase From Trypanosoma Cruzi
All present enzymatic activity of Ternary Substrate Complex of the Hypoxanthine Phosphoribosyltransferase From Trypanosoma Cruzi:
2.4.2.8;
Protein crystallography data
The structure of Ternary Substrate Complex of the Hypoxanthine Phosphoribosyltransferase From Trypanosoma Cruzi, PDB code: 1tc2
was solved by
P.J.Focia,
S.P.Craig Iii,
A.E.Eakin,
with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:
Resolution Low / High (Å)
|
6.00 /
1.81
|
Space group
|
P 1 21 1
|
Cell size a, b, c (Å), α, β, γ (°)
|
39.420,
101.760,
51.920,
90.00,
94.23,
90.00
|
R / Rfree (%)
|
18.3 /
23.2
|
Other elements in 1tc2:
The structure of Ternary Substrate Complex of the Hypoxanthine Phosphoribosyltransferase From Trypanosoma Cruzi also contains other interesting chemical elements:
Magnesium Binding Sites:
The binding sites of Magnesium atom in the Ternary Substrate Complex of the Hypoxanthine Phosphoribosyltransferase From Trypanosoma Cruzi
(pdb code 1tc2). This binding sites where shown within
5.0 Angstroms radius around Magnesium atom.
In total 3 binding sites of Magnesium where determined in the
Ternary Substrate Complex of the Hypoxanthine Phosphoribosyltransferase From Trypanosoma Cruzi, PDB code: 1tc2:
Jump to Magnesium binding site number:
1;
2;
3;
Magnesium binding site 1 out
of 3 in 1tc2
Go back to
Magnesium Binding Sites List in 1tc2
Magnesium binding site 1 out
of 3 in the Ternary Substrate Complex of the Hypoxanthine Phosphoribosyltransferase From Trypanosoma Cruzi
 Mono view
 Stereo pair view
|
A full contact list of Magnesium with other atoms in the Mg binding
site number 1 of Ternary Substrate Complex of the Hypoxanthine Phosphoribosyltransferase From Trypanosoma Cruzi within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
A:Mg900
b:20.0
occ:1.00
|
O
|
A:HOH1282
|
2.0
|
19.9
|
1.0
|
O
|
A:HOH1283
|
2.0
|
20.9
|
1.0
|
O2
|
A:PRP801
|
2.2
|
25.5
|
1.0
|
O3B
|
A:PRP801
|
2.2
|
15.8
|
1.0
|
O3
|
A:PRP801
|
2.3
|
27.6
|
1.0
|
O1
|
A:PRP801
|
2.5
|
21.0
|
1.0
|
C2
|
A:PRP801
|
2.9
|
27.1
|
1.0
|
C3
|
A:PRP801
|
3.0
|
28.1
|
1.0
|
C1
|
A:PRP801
|
3.3
|
25.1
|
1.0
|
PB
|
A:PRP801
|
3.3
|
16.8
|
1.0
|
O3A
|
A:PRP801
|
3.3
|
19.4
|
1.0
|
PA
|
A:PRP801
|
3.7
|
18.3
|
1.0
|
OE2
|
A:GLU111
|
3.8
|
26.0
|
1.0
|
O
|
A:LEU51
|
3.9
|
18.2
|
1.0
|
OD1
|
A:ASP112
|
3.9
|
25.3
|
1.0
|
O
|
A:HOH1126
|
4.1
|
70.7
|
1.0
|
OE1
|
A:GLU111
|
4.1
|
25.1
|
1.0
|
C4
|
A:PRP801
|
4.1
|
27.6
|
1.0
|
O4
|
A:PRP801
|
4.2
|
26.7
|
1.0
|
O2B
|
A:PRP801
|
4.2
|
17.3
|
1.0
|
O1B
|
A:PRP801
|
4.3
|
15.2
|
1.0
|
N
|
A:GLY53
|
4.3
|
18.2
|
1.0
|
N
|
A:LYS52
|
4.3
|
16.1
|
1.0
|
C
|
A:LEU51
|
4.4
|
17.9
|
1.0
|
CD
|
A:GLU111
|
4.4
|
24.7
|
1.0
|
O
|
A:HOH1215
|
4.5
|
60.9
|
1.0
|
O
|
A:VAL50
|
4.5
|
17.2
|
1.0
|
OD2
|
A:ASP112
|
4.6
|
29.2
|
1.0
|
O2A
|
A:PRP801
|
4.6
|
16.7
|
1.0
|
CG
|
A:ASP112
|
4.6
|
25.2
|
1.0
|
O1A
|
A:PRP801
|
4.7
|
16.3
|
1.0
|
CA
|
A:GLY53
|
4.7
|
16.0
|
1.0
|
CG1
|
A:VAL50
|
4.8
|
10.6
|
1.0
|
O
|
A:HOH1286
|
4.9
|
19.8
|
1.0
|
|
Magnesium binding site 2 out
of 3 in 1tc2
Go back to
Magnesium Binding Sites List in 1tc2
Magnesium binding site 2 out
of 3 in the Ternary Substrate Complex of the Hypoxanthine Phosphoribosyltransferase From Trypanosoma Cruzi
 Mono view
 Stereo pair view
|
A full contact list of Magnesium with other atoms in the Mg binding
site number 2 of Ternary Substrate Complex of the Hypoxanthine Phosphoribosyltransferase From Trypanosoma Cruzi within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
A:Mg902
b:19.2
occ:1.00
|
O
|
A:HOH1286
|
2.0
|
19.8
|
1.0
|
O2A
|
A:PRP801
|
2.1
|
16.7
|
1.0
|
O
|
A:HOH1284
|
2.1
|
21.5
|
1.0
|
O
|
A:HOH1285
|
2.1
|
19.8
|
1.0
|
OD1
|
A:ASP171
|
2.1
|
21.0
|
1.0
|
O1B
|
A:PRP801
|
2.2
|
15.2
|
1.0
|
CG
|
A:ASP171
|
3.1
|
22.5
|
1.0
|
PA
|
A:PRP801
|
3.3
|
18.3
|
1.0
|
OD2
|
A:ASP171
|
3.4
|
23.1
|
1.0
|
PB
|
A:PRP801
|
3.4
|
16.8
|
1.0
|
O3A
|
A:PRP801
|
3.6
|
19.4
|
1.0
|
NH2
|
A:ARG177
|
4.0
|
12.2
|
1.0
|
O
|
A:HOH1070
|
4.0
|
48.9
|
1.0
|
O1
|
A:PRP801
|
4.1
|
21.0
|
1.0
|
O
|
A:ASP171
|
4.1
|
19.5
|
1.0
|
NH1
|
A:ARG177
|
4.2
|
12.0
|
1.0
|
C1
|
A:PRP801
|
4.2
|
25.1
|
1.0
|
O3B
|
A:PRP801
|
4.3
|
15.8
|
1.0
|
N3
|
A:7HP800
|
4.3
|
25.0
|
1.0
|
O2B
|
A:PRP801
|
4.4
|
17.3
|
1.0
|
O1A
|
A:PRP801
|
4.4
|
16.3
|
1.0
|
CB
|
A:ASP171
|
4.5
|
18.2
|
1.0
|
O
|
A:HOH1071
|
4.5
|
28.5
|
1.0
|
CZ
|
A:ARG177
|
4.5
|
13.3
|
1.0
|
N
|
A:ASP171
|
4.6
|
13.1
|
1.0
|
O2
|
A:PRP801
|
4.6
|
25.5
|
1.0
|
O
|
A:HOH1073
|
4.6
|
40.8
|
1.0
|
C
|
A:ASP171
|
4.7
|
21.0
|
1.0
|
CA
|
A:ASP171
|
4.8
|
17.7
|
1.0
|
C2
|
A:PRP801
|
5.0
|
27.1
|
1.0
|
|
Magnesium binding site 3 out
of 3 in 1tc2
Go back to
Magnesium Binding Sites List in 1tc2
Magnesium binding site 3 out
of 3 in the Ternary Substrate Complex of the Hypoxanthine Phosphoribosyltransferase From Trypanosoma Cruzi
 Mono view
 Stereo pair view
|
A full contact list of Magnesium with other atoms in the Mg binding
site number 3 of Ternary Substrate Complex of the Hypoxanthine Phosphoribosyltransferase From Trypanosoma Cruzi within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
B:Mg912
b:15.4
occ:1.00
|
O
|
B:HOH1289
|
2.0
|
17.2
|
1.0
|
O2A
|
B:PRP811
|
2.0
|
12.5
|
1.0
|
O
|
B:HOH1288
|
2.1
|
17.1
|
1.0
|
OD1
|
B:ASP671
|
2.1
|
16.4
|
1.0
|
O
|
B:HOH1287
|
2.1
|
15.4
|
1.0
|
O1B
|
B:PRP811
|
2.2
|
16.1
|
1.0
|
CG
|
B:ASP671
|
3.1
|
15.1
|
1.0
|
PA
|
B:PRP811
|
3.2
|
16.3
|
1.0
|
OD2
|
B:ASP671
|
3.3
|
14.7
|
1.0
|
PB
|
B:PRP811
|
3.4
|
15.0
|
1.0
|
O3A
|
B:PRP811
|
3.5
|
16.7
|
1.0
|
O
|
B:HOH1031
|
3.6
|
24.6
|
1.0
|
O1
|
B:PRP811
|
3.9
|
16.5
|
1.0
|
NH2
|
B:ARG677
|
4.0
|
13.7
|
1.0
|
C1
|
B:PRP811
|
4.1
|
14.3
|
1.0
|
O
|
B:ASP671
|
4.2
|
17.2
|
1.0
|
O
|
B:HOH1025
|
4.3
|
24.2
|
1.0
|
O3B
|
B:PRP811
|
4.3
|
13.6
|
1.0
|
O
|
B:HOH1022
|
4.3
|
19.8
|
1.0
|
O2B
|
B:PRP811
|
4.3
|
14.5
|
1.0
|
NH1
|
B:ARG677
|
4.4
|
15.1
|
1.0
|
O1A
|
B:PRP811
|
4.5
|
17.0
|
1.0
|
N3
|
B:7HP810
|
4.5
|
16.5
|
1.0
|
CB
|
B:ASP671
|
4.5
|
13.4
|
1.0
|
CB
|
B:TYR582
|
4.6
|
24.0
|
1.0
|
O
|
B:GLY583
|
4.6
|
27.6
|
1.0
|
CZ
|
B:ARG677
|
4.6
|
15.5
|
1.0
|
C
|
B:ASP671
|
4.7
|
17.3
|
1.0
|
O
|
B:HOH1024
|
4.8
|
28.1
|
1.0
|
N
|
B:ASP671
|
4.8
|
12.9
|
1.0
|
O2
|
B:PRP811
|
4.8
|
15.9
|
1.0
|
CA
|
B:ASP671
|
4.9
|
15.3
|
1.0
|
C2
|
B:PRP811
|
5.0
|
14.6
|
1.0
|
|
Reference:
P.J.Focia,
S.P.Craig Iii,
A.E.Eakin.
Approaching the Transition State in the Crystal Structure of A Phosphoribosyltransferase. Biochemistry V. 37 17120 1998.
ISSN: ISSN 0006-2960
PubMed: 9860824
DOI: 10.1021/BI9821465
Page generated: Tue Aug 13 14:31:26 2024
|