Magnesium in PDB 1br4: Smooth Muscle Myosin Motor Domain-Essential Light Chain Complex with Mgadp.BEF3 Bound at the Active Site
Enzymatic activity of Smooth Muscle Myosin Motor Domain-Essential Light Chain Complex with Mgadp.BEF3 Bound at the Active Site
All present enzymatic activity of Smooth Muscle Myosin Motor Domain-Essential Light Chain Complex with Mgadp.BEF3 Bound at the Active Site:
3.6.1.32;
Protein crystallography data
The structure of Smooth Muscle Myosin Motor Domain-Essential Light Chain Complex with Mgadp.BEF3 Bound at the Active Site, PDB code: 1br4
was solved by
R.Dominguez,
K.M.Trybus,
C.Cohen,
with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:
Resolution Low / High (Å)
|
10.00 /
3.62
|
Space group
|
P 1
|
Cell size a, b, c (Å), α, β, γ (°)
|
95.320,
144.660,
147.290,
111.21,
106.10,
92.58
|
R / Rfree (%)
|
27.7 /
35.2
|
Other elements in 1br4:
The structure of Smooth Muscle Myosin Motor Domain-Essential Light Chain Complex with Mgadp.BEF3 Bound at the Active Site also contains other interesting chemical elements:
Magnesium Binding Sites:
The binding sites of Magnesium atom in the Smooth Muscle Myosin Motor Domain-Essential Light Chain Complex with Mgadp.BEF3 Bound at the Active Site
(pdb code 1br4). This binding sites where shown within
5.0 Angstroms radius around Magnesium atom.
In total 4 binding sites of Magnesium where determined in the
Smooth Muscle Myosin Motor Domain-Essential Light Chain Complex with Mgadp.BEF3 Bound at the Active Site, PDB code: 1br4:
Jump to Magnesium binding site number:
1;
2;
3;
4;
Magnesium binding site 1 out
of 4 in 1br4
Go back to
Magnesium Binding Sites List in 1br4
Magnesium binding site 1 out
of 4 in the Smooth Muscle Myosin Motor Domain-Essential Light Chain Complex with Mgadp.BEF3 Bound at the Active Site
Mono view
Stereo pair view
|
A full contact list of Magnesium with other atoms in the Mg binding
site number 1 of Smooth Muscle Myosin Motor Domain-Essential Light Chain Complex with Mgadp.BEF3 Bound at the Active Site within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
A:Mg997
b:25.0
occ:1.00
|
F3
|
A:BEF999
|
2.1
|
25.0
|
1.0
|
O2B
|
A:ADP998
|
2.1
|
25.0
|
1.0
|
O
|
A:HOH995
|
2.1
|
25.0
|
1.0
|
OG1
|
A:THR184
|
2.5
|
55.3
|
1.0
|
OG
|
A:SER246
|
2.9
|
70.0
|
1.0
|
CB
|
A:SER246
|
3.1
|
70.0
|
1.0
|
BE
|
A:BEF999
|
3.4
|
25.0
|
1.0
|
PB
|
A:ADP998
|
3.4
|
25.0
|
1.0
|
OD1
|
A:ASP465
|
3.5
|
0.0
|
1.0
|
O3B
|
A:ADP998
|
3.6
|
25.0
|
1.0
|
CB
|
A:THR184
|
3.7
|
55.3
|
1.0
|
N
|
A:THR184
|
3.9
|
2.0
|
1.0
|
F1
|
A:BEF999
|
4.1
|
25.0
|
1.0
|
CB
|
A:LYS183
|
4.1
|
2.0
|
1.0
|
N
|
A:SER246
|
4.2
|
2.1
|
1.0
|
CA
|
A:SER246
|
4.2
|
2.1
|
1.0
|
O2A
|
A:ADP998
|
4.3
|
25.0
|
1.0
|
CA
|
A:THR184
|
4.3
|
2.0
|
1.0
|
O1B
|
A:ADP998
|
4.4
|
25.0
|
1.0
|
O3A
|
A:ADP998
|
4.4
|
25.0
|
1.0
|
F2
|
A:BEF999
|
4.5
|
25.0
|
1.0
|
CG
|
A:ASP465
|
4.6
|
0.0
|
1.0
|
O
|
A:ILE466
|
4.7
|
2.0
|
1.0
|
PA
|
A:ADP998
|
4.7
|
25.0
|
1.0
|
CE
|
A:LYS183
|
4.8
|
2.0
|
1.0
|
O1A
|
A:ADP998
|
4.8
|
25.0
|
1.0
|
CG2
|
A:THR184
|
4.8
|
55.3
|
1.0
|
C
|
A:LYS183
|
4.9
|
2.0
|
1.0
|
OD2
|
A:ASP465
|
5.0
|
0.0
|
1.0
|
|
Magnesium binding site 2 out
of 4 in 1br4
Go back to
Magnesium Binding Sites List in 1br4
Magnesium binding site 2 out
of 4 in the Smooth Muscle Myosin Motor Domain-Essential Light Chain Complex with Mgadp.BEF3 Bound at the Active Site
Mono view
Stereo pair view
|
A full contact list of Magnesium with other atoms in the Mg binding
site number 2 of Smooth Muscle Myosin Motor Domain-Essential Light Chain Complex with Mgadp.BEF3 Bound at the Active Site within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
C:Mg997
b:25.0
occ:1.00
|
F3
|
C:BEF999
|
2.1
|
25.0
|
1.0
|
O2B
|
C:ADP998
|
2.1
|
25.0
|
1.0
|
O
|
C:HOH995
|
2.1
|
25.0
|
1.0
|
OG1
|
C:THR184
|
2.4
|
2.0
|
1.0
|
OG
|
C:SER246
|
3.0
|
27.2
|
1.0
|
CB
|
C:SER246
|
3.2
|
27.2
|
1.0
|
BE
|
C:BEF999
|
3.4
|
25.0
|
1.0
|
PB
|
C:ADP998
|
3.4
|
25.0
|
1.0
|
CB
|
C:THR184
|
3.6
|
2.0
|
1.0
|
OD1
|
C:ASP465
|
3.6
|
98.8
|
1.0
|
O3B
|
C:ADP998
|
3.6
|
25.0
|
1.0
|
N
|
C:THR184
|
3.8
|
25.2
|
1.0
|
CB
|
C:LYS183
|
4.1
|
8.6
|
1.0
|
F1
|
C:BEF999
|
4.1
|
25.0
|
1.0
|
CA
|
C:THR184
|
4.2
|
25.2
|
1.0
|
N
|
C:SER246
|
4.2
|
2.5
|
1.0
|
O2A
|
C:ADP998
|
4.3
|
25.0
|
1.0
|
CA
|
C:SER246
|
4.3
|
2.5
|
1.0
|
O1B
|
C:ADP998
|
4.4
|
25.0
|
1.0
|
O3A
|
C:ADP998
|
4.4
|
25.0
|
1.0
|
F2
|
C:BEF999
|
4.5
|
25.0
|
1.0
|
CG
|
C:ASP465
|
4.7
|
98.8
|
1.0
|
PA
|
C:ADP998
|
4.7
|
25.0
|
1.0
|
CG2
|
C:THR184
|
4.8
|
2.0
|
1.0
|
C
|
C:LYS183
|
4.8
|
2.0
|
1.0
|
O
|
C:ILE466
|
4.8
|
26.0
|
1.0
|
CE
|
C:LYS183
|
4.8
|
8.6
|
1.0
|
O1A
|
C:ADP998
|
4.8
|
25.0
|
1.0
|
CA
|
C:LYS183
|
5.0
|
2.0
|
1.0
|
|
Magnesium binding site 3 out
of 4 in 1br4
Go back to
Magnesium Binding Sites List in 1br4
Magnesium binding site 3 out
of 4 in the Smooth Muscle Myosin Motor Domain-Essential Light Chain Complex with Mgadp.BEF3 Bound at the Active Site
Mono view
Stereo pair view
|
A full contact list of Magnesium with other atoms in the Mg binding
site number 3 of Smooth Muscle Myosin Motor Domain-Essential Light Chain Complex with Mgadp.BEF3 Bound at the Active Site within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
E:Mg997
b:25.0
occ:1.00
|
F3
|
E:BEF999
|
2.1
|
25.0
|
1.0
|
O2B
|
E:ADP998
|
2.1
|
25.0
|
1.0
|
O
|
E:HOH995
|
2.1
|
25.0
|
1.0
|
OG1
|
E:THR184
|
2.4
|
50.5
|
1.0
|
OG
|
E:SER246
|
3.0
|
25.7
|
1.0
|
CB
|
E:SER246
|
3.2
|
25.7
|
1.0
|
BE
|
E:BEF999
|
3.4
|
25.0
|
1.0
|
PB
|
E:ADP998
|
3.4
|
25.0
|
1.0
|
OD1
|
E:ASP465
|
3.6
|
16.8
|
1.0
|
CB
|
E:THR184
|
3.6
|
50.5
|
1.0
|
O3B
|
E:ADP998
|
3.6
|
25.0
|
1.0
|
N
|
E:THR184
|
3.8
|
5.7
|
1.0
|
CB
|
E:LYS183
|
4.1
|
2.0
|
1.0
|
F1
|
E:BEF999
|
4.1
|
25.0
|
1.0
|
CA
|
E:THR184
|
4.2
|
5.7
|
1.0
|
N
|
E:SER246
|
4.2
|
2.0
|
1.0
|
O2A
|
E:ADP998
|
4.3
|
25.0
|
1.0
|
CA
|
E:SER246
|
4.3
|
2.0
|
1.0
|
O1B
|
E:ADP998
|
4.4
|
25.0
|
1.0
|
O3A
|
E:ADP998
|
4.4
|
25.0
|
1.0
|
F2
|
E:BEF999
|
4.5
|
25.0
|
1.0
|
CG
|
E:ASP465
|
4.7
|
16.8
|
1.0
|
PA
|
E:ADP998
|
4.7
|
25.0
|
1.0
|
CG2
|
E:THR184
|
4.8
|
50.5
|
1.0
|
C
|
E:LYS183
|
4.8
|
2.3
|
1.0
|
CE
|
E:LYS183
|
4.8
|
2.0
|
1.0
|
O
|
E:ILE466
|
4.8
|
6.3
|
1.0
|
O1A
|
E:ADP998
|
4.8
|
25.0
|
1.0
|
CA
|
E:LYS183
|
5.0
|
2.3
|
1.0
|
|
Magnesium binding site 4 out
of 4 in 1br4
Go back to
Magnesium Binding Sites List in 1br4
Magnesium binding site 4 out
of 4 in the Smooth Muscle Myosin Motor Domain-Essential Light Chain Complex with Mgadp.BEF3 Bound at the Active Site
Mono view
Stereo pair view
|
A full contact list of Magnesium with other atoms in the Mg binding
site number 4 of Smooth Muscle Myosin Motor Domain-Essential Light Chain Complex with Mgadp.BEF3 Bound at the Active Site within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
G:Mg997
b:25.0
occ:1.00
|
F3
|
G:BEF999
|
2.1
|
25.0
|
1.0
|
O2B
|
G:ADP998
|
2.1
|
25.0
|
1.0
|
O
|
G:HOH995
|
2.1
|
25.0
|
1.0
|
OG1
|
G:THR184
|
2.4
|
92.2
|
1.0
|
OG
|
G:SER246
|
3.0
|
59.4
|
1.0
|
CB
|
G:SER246
|
3.2
|
59.4
|
1.0
|
BE
|
G:BEF999
|
3.4
|
25.0
|
1.0
|
PB
|
G:ADP998
|
3.4
|
25.0
|
1.0
|
OD1
|
G:ASP465
|
3.6
|
56.2
|
1.0
|
CB
|
G:THR184
|
3.6
|
92.2
|
1.0
|
O3B
|
G:ADP998
|
3.6
|
25.0
|
1.0
|
N
|
G:THR184
|
3.8
|
2.4
|
1.0
|
CB
|
G:LYS183
|
4.1
|
2.0
|
1.0
|
F1
|
G:BEF999
|
4.1
|
25.0
|
1.0
|
N
|
G:SER246
|
4.2
|
2.0
|
1.0
|
CA
|
G:THR184
|
4.2
|
2.4
|
1.0
|
O2A
|
G:ADP998
|
4.3
|
25.0
|
1.0
|
CA
|
G:SER246
|
4.3
|
2.0
|
1.0
|
O1B
|
G:ADP998
|
4.4
|
25.0
|
1.0
|
O3A
|
G:ADP998
|
4.4
|
25.0
|
1.0
|
F2
|
G:BEF999
|
4.5
|
25.0
|
1.0
|
CG
|
G:ASP465
|
4.7
|
56.2
|
1.0
|
PA
|
G:ADP998
|
4.7
|
25.0
|
1.0
|
CG2
|
G:THR184
|
4.8
|
92.2
|
1.0
|
O
|
G:ILE466
|
4.8
|
12.0
|
1.0
|
C
|
G:LYS183
|
4.8
|
35.4
|
1.0
|
CE
|
G:LYS183
|
4.8
|
2.0
|
1.0
|
O1A
|
G:ADP998
|
4.8
|
25.0
|
1.0
|
CA
|
G:LYS183
|
5.0
|
35.4
|
1.0
|
|
Reference:
R.Dominguez,
Y.Freyzon,
K.M.Trybus,
C.Cohen.
Crystal Structure of A Vertebrate Smooth Muscle Myosin Motor Domain and Its Complex with the Essential Light Chain: Visualization of the Pre-Power Stroke State. Cell(Cambridge,Mass.) V. 94 559 1998.
ISSN: ISSN 0092-8674
PubMed: 9741621
DOI: 10.1016/S0092-8674(00)81598-6
Page generated: Tue Aug 13 02:14:39 2024
|