Magnesium in PDB 2gqs: Saicar Synthetase Complexed with Cair-MG2+ and Adp
Enzymatic activity of Saicar Synthetase Complexed with Cair-MG2+ and Adp
All present enzymatic activity of Saicar Synthetase Complexed with Cair-MG2+ and Adp:
6.3.2.6;
Protein crystallography data
The structure of Saicar Synthetase Complexed with Cair-MG2+ and Adp, PDB code: 2gqs
was solved by
N.D.Ginder,
R.B.Honzatko,
with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:
Resolution Low / High (Å)
|
24.96 /
2.05
|
Space group
|
P 21 21 21
|
Cell size a, b, c (Å), α, β, γ (°)
|
59.430,
67.120,
149.310,
90.00,
90.00,
90.00
|
R / Rfree (%)
|
22 /
26.3
|
Magnesium Binding Sites:
The binding sites of Magnesium atom in the Saicar Synthetase Complexed with Cair-MG2+ and Adp
(pdb code 2gqs). This binding sites where shown within
5.0 Angstroms radius around Magnesium atom.
In total 6 binding sites of Magnesium where determined in the
Saicar Synthetase Complexed with Cair-MG2+ and Adp, PDB code: 2gqs:
Jump to Magnesium binding site number:
1;
2;
3;
4;
5;
6;
Magnesium binding site 1 out
of 6 in 2gqs
Go back to
Magnesium Binding Sites List in 2gqs
Magnesium binding site 1 out
of 6 in the Saicar Synthetase Complexed with Cair-MG2+ and Adp
Mono view
Stereo pair view
|
A full contact list of Magnesium with other atoms in the Mg binding
site number 1 of Saicar Synthetase Complexed with Cair-MG2+ and Adp within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
A:Mg239
b:27.7
occ:1.00
|
O1
|
A:FMT243
|
2.0
|
31.6
|
1.0
|
O3B
|
A:ADP238
|
2.1
|
38.5
|
1.0
|
O
|
A:HOH244
|
2.1
|
21.8
|
1.0
|
O2A
|
A:ADP238
|
2.2
|
27.1
|
1.0
|
O
|
A:HOH245
|
2.2
|
23.0
|
1.0
|
O
|
A:HOH246
|
2.2
|
19.3
|
1.0
|
C
|
A:FMT243
|
3.1
|
32.2
|
1.0
|
PB
|
A:ADP238
|
3.3
|
32.6
|
1.0
|
PA
|
A:ADP238
|
3.4
|
23.8
|
1.0
|
O3A
|
A:ADP238
|
3.5
|
32.2
|
1.0
|
O2
|
A:FMT243
|
3.5
|
29.9
|
1.0
|
NZ
|
A:LYS13
|
3.9
|
20.1
|
1.0
|
O2B
|
A:ADP238
|
4.0
|
37.1
|
1.0
|
OD1
|
A:ASP191
|
4.0
|
19.4
|
1.0
|
OD2
|
A:ASP191
|
4.1
|
23.1
|
1.0
|
OE1
|
A:GLU179
|
4.1
|
23.6
|
1.0
|
NZ
|
A:LYS177
|
4.2
|
22.3
|
1.0
|
O1A
|
A:ADP238
|
4.3
|
30.8
|
1.0
|
O
|
A:HOH295
|
4.3
|
29.3
|
1.0
|
NZ
|
A:LYS123
|
4.4
|
23.9
|
1.0
|
O1B
|
A:ADP238
|
4.5
|
35.5
|
1.0
|
CG
|
A:ASP191
|
4.5
|
21.4
|
1.0
|
O5'
|
A:ADP238
|
4.6
|
31.3
|
1.0
|
NZ
|
A:LYS11
|
4.7
|
34.1
|
1.0
|
C5'
|
A:ADP238
|
4.8
|
24.7
|
1.0
|
|
Magnesium binding site 2 out
of 6 in 2gqs
Go back to
Magnesium Binding Sites List in 2gqs
Magnesium binding site 2 out
of 6 in the Saicar Synthetase Complexed with Cair-MG2+ and Adp
Mono view
Stereo pair view
|
A full contact list of Magnesium with other atoms in the Mg binding
site number 2 of Saicar Synthetase Complexed with Cair-MG2+ and Adp within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
A:Mg240
b:27.4
occ:1.00
|
O
|
A:HOH249
|
2.0
|
20.0
|
1.0
|
OE1
|
A:GLU90
|
2.1
|
24.5
|
1.0
|
O8
|
A:C2R242
|
2.1
|
28.0
|
1.0
|
OD2
|
A:ASP129
|
2.1
|
28.6
|
1.0
|
O
|
A:HOH248
|
2.1
|
20.7
|
1.0
|
N3
|
A:C2R242
|
2.2
|
28.0
|
1.0
|
C4
|
A:C2R242
|
2.8
|
28.3
|
1.0
|
C6
|
A:C2R242
|
2.8
|
28.2
|
1.0
|
CD
|
A:GLU90
|
2.9
|
26.5
|
1.0
|
OE2
|
A:GLU90
|
3.1
|
23.9
|
1.0
|
CG
|
A:ASP129
|
3.1
|
27.0
|
1.0
|
MG
|
A:MG241
|
3.2
|
26.2
|
1.0
|
C2
|
A:C2R242
|
3.4
|
27.8
|
1.0
|
CB
|
A:ASP129
|
3.5
|
25.9
|
1.0
|
OD1
|
A:ASP36
|
3.9
|
33.2
|
1.0
|
O
|
A:HOH281
|
3.9
|
25.6
|
1.0
|
O7
|
A:C2R242
|
4.0
|
29.0
|
1.0
|
C5
|
A:C2R242
|
4.1
|
28.4
|
1.0
|
O
|
A:HOH250
|
4.2
|
21.4
|
1.0
|
OD1
|
A:ASP129
|
4.2
|
27.1
|
1.0
|
CG
|
A:GLU90
|
4.3
|
25.1
|
1.0
|
N1
|
A:C2R242
|
4.4
|
26.6
|
1.0
|
O2
|
A:FMT243
|
4.7
|
29.9
|
1.0
|
CB
|
A:GLU90
|
4.8
|
25.6
|
1.0
|
O
|
A:HOH251
|
4.8
|
19.8
|
1.0
|
C
|
A:FMT243
|
4.9
|
32.2
|
1.0
|
|
Magnesium binding site 3 out
of 6 in 2gqs
Go back to
Magnesium Binding Sites List in 2gqs
Magnesium binding site 3 out
of 6 in the Saicar Synthetase Complexed with Cair-MG2+ and Adp
Mono view
Stereo pair view
|
A full contact list of Magnesium with other atoms in the Mg binding
site number 3 of Saicar Synthetase Complexed with Cair-MG2+ and Adp within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
A:Mg241
b:26.2
occ:1.00
|
O
|
A:HOH251
|
2.0
|
19.8
|
1.0
|
O8
|
A:C2R242
|
2.1
|
28.0
|
1.0
|
OD2
|
A:ASP129
|
2.2
|
28.6
|
1.0
|
OE2
|
A:GLU90
|
2.2
|
23.9
|
1.0
|
O
|
A:HOH250
|
2.2
|
21.4
|
1.0
|
O2
|
A:FMT243
|
2.2
|
29.9
|
1.0
|
C
|
A:FMT243
|
3.0
|
32.2
|
1.0
|
CG
|
A:ASP129
|
3.0
|
27.0
|
1.0
|
OD1
|
A:ASP129
|
3.1
|
27.1
|
1.0
|
MG
|
A:MG240
|
3.2
|
27.4
|
1.0
|
C6
|
A:C2R242
|
3.2
|
28.2
|
1.0
|
CD
|
A:GLU90
|
3.2
|
26.5
|
1.0
|
OE1
|
A:GLU90
|
3.6
|
24.5
|
1.0
|
O7
|
A:C2R242
|
3.7
|
29.0
|
1.0
|
NZ
|
A:LYS11
|
4.0
|
34.1
|
1.0
|
O
|
A:HOH311
|
4.1
|
39.2
|
1.0
|
OD1
|
A:ASP125
|
4.1
|
34.8
|
1.0
|
OD1
|
A:ASP36
|
4.1
|
33.2
|
1.0
|
O1
|
A:FMT243
|
4.2
|
31.6
|
1.0
|
NZ
|
A:LYS123
|
4.3
|
23.9
|
1.0
|
C4
|
A:C2R242
|
4.4
|
28.3
|
1.0
|
O
|
A:HOH248
|
4.4
|
20.7
|
1.0
|
CB
|
A:ASP129
|
4.4
|
25.9
|
1.0
|
CG
|
A:GLU90
|
4.5
|
25.1
|
1.0
|
N3
|
A:C2R242
|
4.7
|
28.0
|
1.0
|
CE
|
A:LYS11
|
4.8
|
35.6
|
1.0
|
CG
|
A:LYS123
|
4.8
|
26.8
|
1.0
|
O
|
A:HOH249
|
4.9
|
20.0
|
1.0
|
|
Magnesium binding site 4 out
of 6 in 2gqs
Go back to
Magnesium Binding Sites List in 2gqs
Magnesium binding site 4 out
of 6 in the Saicar Synthetase Complexed with Cair-MG2+ and Adp
Mono view
Stereo pair view
|
A full contact list of Magnesium with other atoms in the Mg binding
site number 4 of Saicar Synthetase Complexed with Cair-MG2+ and Adp within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
B:Mg239
b:34.9
occ:1.00
|
O2A
|
B:ADP238
|
2.1
|
28.9
|
1.0
|
O2
|
B:FMT243
|
2.1
|
30.3
|
1.0
|
O
|
B:HOH244
|
2.2
|
28.3
|
1.0
|
O
|
B:HOH246
|
2.2
|
24.0
|
1.0
|
O
|
B:HOH245
|
2.3
|
32.6
|
1.0
|
O3B
|
B:ADP238
|
2.4
|
44.7
|
1.0
|
C
|
B:FMT243
|
3.2
|
33.8
|
1.0
|
PA
|
B:ADP238
|
3.3
|
28.1
|
1.0
|
O3A
|
B:ADP238
|
3.5
|
36.0
|
1.0
|
PB
|
B:ADP238
|
3.6
|
39.3
|
1.0
|
O1
|
B:FMT243
|
3.8
|
35.1
|
1.0
|
NZ
|
B:LYS13
|
3.9
|
25.7
|
1.0
|
OD1
|
B:ASP191
|
4.0
|
31.6
|
1.0
|
NZ
|
B:LYS123
|
4.1
|
32.8
|
1.0
|
OE1
|
B:GLU179
|
4.2
|
28.7
|
1.0
|
OD2
|
B:ASP191
|
4.2
|
30.0
|
1.0
|
O1A
|
B:ADP238
|
4.3
|
29.6
|
1.0
|
NZ
|
B:LYS177
|
4.3
|
25.6
|
1.0
|
O1B
|
B:ADP238
|
4.4
|
44.6
|
1.0
|
CG
|
B:ASP191
|
4.5
|
31.3
|
1.0
|
O5'
|
B:ADP238
|
4.5
|
31.8
|
1.0
|
O
|
B:HOH329
|
4.5
|
38.1
|
1.0
|
NZ
|
B:LYS11
|
4.7
|
30.3
|
1.0
|
O2B
|
B:ADP238
|
4.7
|
44.5
|
1.0
|
O
|
B:HOH262
|
4.8
|
31.3
|
1.0
|
C5'
|
B:ADP238
|
4.9
|
29.7
|
1.0
|
C3'
|
B:ADP238
|
4.9
|
28.7
|
1.0
|
OE1
|
B:GLU192
|
5.0
|
32.9
|
1.0
|
|
Magnesium binding site 5 out
of 6 in 2gqs
Go back to
Magnesium Binding Sites List in 2gqs
Magnesium binding site 5 out
of 6 in the Saicar Synthetase Complexed with Cair-MG2+ and Adp
Mono view
Stereo pair view
|
A full contact list of Magnesium with other atoms in the Mg binding
site number 5 of Saicar Synthetase Complexed with Cair-MG2+ and Adp within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
B:Mg240
b:28.3
occ:1.00
|
O
|
B:HOH248
|
2.0
|
27.8
|
1.0
|
OE1
|
B:GLU90
|
2.0
|
26.8
|
1.0
|
OD2
|
B:ASP129
|
2.1
|
27.1
|
1.0
|
O8
|
B:C2R242
|
2.1
|
30.7
|
1.0
|
O
|
B:HOH249
|
2.1
|
20.0
|
1.0
|
N3
|
B:C2R242
|
2.2
|
29.6
|
1.0
|
C6
|
B:C2R242
|
2.8
|
31.8
|
1.0
|
C4
|
B:C2R242
|
2.9
|
29.5
|
1.0
|
CD
|
B:GLU90
|
2.9
|
29.7
|
1.0
|
MG
|
B:MG241
|
3.0
|
34.5
|
1.0
|
CG
|
B:ASP129
|
3.1
|
25.9
|
1.0
|
OE2
|
B:GLU90
|
3.2
|
27.9
|
1.0
|
C2
|
B:C2R242
|
3.5
|
29.1
|
1.0
|
CB
|
B:ASP129
|
3.5
|
24.6
|
1.0
|
OD1
|
B:ASP36
|
4.0
|
39.1
|
1.0
|
O7
|
B:C2R242
|
4.1
|
32.4
|
1.0
|
O
|
B:HOH264
|
4.1
|
30.6
|
1.0
|
O
|
B:HOH250
|
4.2
|
31.8
|
1.0
|
C5
|
B:C2R242
|
4.2
|
27.9
|
1.0
|
OD1
|
B:ASP129
|
4.2
|
26.6
|
1.0
|
CG
|
B:GLU90
|
4.3
|
30.2
|
1.0
|
O
|
B:HOH319
|
4.4
|
34.3
|
1.0
|
N1
|
B:C2R242
|
4.5
|
26.9
|
1.0
|
O1
|
B:FMT243
|
4.7
|
35.1
|
1.0
|
O
|
B:HOH281
|
4.7
|
27.0
|
1.0
|
O
|
B:HOH251
|
4.7
|
23.3
|
1.0
|
CB
|
B:GLU90
|
4.8
|
28.6
|
1.0
|
C
|
B:FMT243
|
4.8
|
33.8
|
1.0
|
|
Magnesium binding site 6 out
of 6 in 2gqs
Go back to
Magnesium Binding Sites List in 2gqs
Magnesium binding site 6 out
of 6 in the Saicar Synthetase Complexed with Cair-MG2+ and Adp
Mono view
Stereo pair view
|
A full contact list of Magnesium with other atoms in the Mg binding
site number 6 of Saicar Synthetase Complexed with Cair-MG2+ and Adp within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
B:Mg241
b:34.5
occ:1.00
|
O8
|
B:C2R242
|
2.0
|
30.7
|
1.0
|
O1
|
B:FMT243
|
2.1
|
35.1
|
1.0
|
O
|
B:HOH250
|
2.1
|
31.8
|
1.0
|
O
|
B:HOH251
|
2.1
|
23.3
|
1.0
|
OD2
|
B:ASP129
|
2.1
|
27.1
|
1.0
|
OE2
|
B:GLU90
|
2.2
|
27.9
|
1.0
|
C
|
B:FMT243
|
2.8
|
33.8
|
1.0
|
MG
|
B:MG240
|
3.0
|
28.3
|
1.0
|
CG
|
B:ASP129
|
3.1
|
25.9
|
1.0
|
C6
|
B:C2R242
|
3.1
|
31.8
|
1.0
|
CD
|
B:GLU90
|
3.1
|
29.7
|
1.0
|
OD1
|
B:ASP129
|
3.3
|
26.6
|
1.0
|
OE1
|
B:GLU90
|
3.5
|
26.8
|
1.0
|
O7
|
B:C2R242
|
3.7
|
32.4
|
1.0
|
OD1
|
B:ASP125
|
3.9
|
45.2
|
1.0
|
O2
|
B:FMT243
|
4.0
|
30.3
|
1.0
|
OD1
|
B:ASP36
|
4.0
|
39.1
|
1.0
|
O
|
B:HOH248
|
4.1
|
27.8
|
1.0
|
NZ
|
B:LYS123
|
4.1
|
32.8
|
1.0
|
NZ
|
B:LYS11
|
4.3
|
30.3
|
1.0
|
C4
|
B:C2R242
|
4.3
|
29.5
|
1.0
|
CB
|
B:ASP129
|
4.5
|
24.6
|
1.0
|
CG
|
B:GLU90
|
4.5
|
30.2
|
1.0
|
N3
|
B:C2R242
|
4.6
|
29.6
|
1.0
|
CG
|
B:LYS123
|
4.6
|
29.1
|
1.0
|
CE
|
B:LYS11
|
4.7
|
30.5
|
1.0
|
O
|
B:HOH249
|
4.9
|
20.0
|
1.0
|
|
Reference:
N.D.Ginder,
D.J.Binkowski,
H.J.Fromm,
R.B.Honzatko.
Nucleotide Complexes of Escherichia Coli Phosphoribosylaminoimidazole Succinocarboxamide Synthetase. J.Biol.Chem. V. 281 20680 2006.
ISSN: ISSN 0021-9258
PubMed: 16687397
DOI: 10.1074/JBC.M602109200
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