Iron in PDB 7tsn: Structure of Human Endothelial Nitric Oxide Synthase Heme Domain in Complex with 6-(3-(3,3-Difluoroazetidin-1-Yl)Prop-1-Yn-1-Yl)-4- Methylpyridin-2-Amine
Enzymatic activity of Structure of Human Endothelial Nitric Oxide Synthase Heme Domain in Complex with 6-(3-(3,3-Difluoroazetidin-1-Yl)Prop-1-Yn-1-Yl)-4- Methylpyridin-2-Amine
All present enzymatic activity of Structure of Human Endothelial Nitric Oxide Synthase Heme Domain in Complex with 6-(3-(3,3-Difluoroazetidin-1-Yl)Prop-1-Yn-1-Yl)-4- Methylpyridin-2-Amine:
1.14.13.39;
Protein crystallography data
The structure of Structure of Human Endothelial Nitric Oxide Synthase Heme Domain in Complex with 6-(3-(3,3-Difluoroazetidin-1-Yl)Prop-1-Yn-1-Yl)-4- Methylpyridin-2-Amine, PDB code: 7tsn
was solved by
H.Li,
T.L.Poulos,
with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:
Resolution Low / High (Å)
|
49.02 /
2.08
|
Space group
|
P 1 21 1
|
Cell size a, b, c (Å), α, β, γ (°)
|
58.784,
151.035,
107.412,
90,
90.66,
90
|
R / Rfree (%)
|
21.4 /
26.2
|
Other elements in 7tsn:
The structure of Structure of Human Endothelial Nitric Oxide Synthase Heme Domain in Complex with 6-(3-(3,3-Difluoroazetidin-1-Yl)Prop-1-Yn-1-Yl)-4- Methylpyridin-2-Amine also contains other interesting chemical elements:
Iron Binding Sites:
The binding sites of Iron atom in the Structure of Human Endothelial Nitric Oxide Synthase Heme Domain in Complex with 6-(3-(3,3-Difluoroazetidin-1-Yl)Prop-1-Yn-1-Yl)-4- Methylpyridin-2-Amine
(pdb code 7tsn). This binding sites where shown within
5.0 Angstroms radius around Iron atom.
In total 4 binding sites of Iron where determined in the
Structure of Human Endothelial Nitric Oxide Synthase Heme Domain in Complex with 6-(3-(3,3-Difluoroazetidin-1-Yl)Prop-1-Yn-1-Yl)-4- Methylpyridin-2-Amine, PDB code: 7tsn:
Jump to Iron binding site number:
1;
2;
3;
4;
Iron binding site 1 out
of 4 in 7tsn
Go back to
Iron Binding Sites List in 7tsn
Iron binding site 1 out
of 4 in the Structure of Human Endothelial Nitric Oxide Synthase Heme Domain in Complex with 6-(3-(3,3-Difluoroazetidin-1-Yl)Prop-1-Yn-1-Yl)-4- Methylpyridin-2-Amine
Mono view
Stereo pair view
|
A full contact list of Iron with other atoms in the Fe binding
site number 1 of Structure of Human Endothelial Nitric Oxide Synthase Heme Domain in Complex with 6-(3-(3,3-Difluoroazetidin-1-Yl)Prop-1-Yn-1-Yl)-4- Methylpyridin-2-Amine within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
A:Fe501
b:48.9
occ:1.00
|
FE
|
A:HEM501
|
0.0
|
48.9
|
1.0
|
NC
|
A:HEM501
|
2.1
|
63.4
|
1.0
|
NA
|
A:HEM501
|
2.1
|
52.0
|
1.0
|
ND
|
A:HEM501
|
2.1
|
56.7
|
1.0
|
NB
|
A:HEM501
|
2.1
|
52.9
|
1.0
|
SG
|
A:CYS184
|
2.3
|
42.4
|
1.0
|
C1C
|
A:HEM501
|
3.1
|
59.0
|
1.0
|
C4B
|
A:HEM501
|
3.1
|
55.4
|
1.0
|
C1A
|
A:HEM501
|
3.1
|
48.6
|
1.0
|
C4D
|
A:HEM501
|
3.1
|
58.5
|
1.0
|
C4C
|
A:HEM501
|
3.1
|
64.2
|
1.0
|
C1B
|
A:HEM501
|
3.1
|
54.2
|
1.0
|
C4A
|
A:HEM501
|
3.1
|
55.7
|
1.0
|
C1D
|
A:HEM501
|
3.1
|
61.3
|
1.0
|
CB
|
A:CYS184
|
3.3
|
44.9
|
1.0
|
CHC
|
A:HEM501
|
3.4
|
53.3
|
1.0
|
CHA
|
A:HEM501
|
3.4
|
50.3
|
1.0
|
CHD
|
A:HEM501
|
3.5
|
65.1
|
1.0
|
CHB
|
A:HEM501
|
3.5
|
51.7
|
1.0
|
C04
|
A:K7U503
|
3.8
|
51.3
|
1.0
|
C03
|
A:K7U503
|
3.8
|
44.5
|
1.0
|
CA
|
A:CYS184
|
4.0
|
44.0
|
1.0
|
C07
|
A:K7U503
|
4.1
|
59.2
|
1.0
|
C05
|
A:K7U503
|
4.3
|
46.1
|
1.0
|
C02
|
A:K7U503
|
4.3
|
43.8
|
1.0
|
C3B
|
A:HEM501
|
4.3
|
50.4
|
1.0
|
C2C
|
A:HEM501
|
4.3
|
61.4
|
1.0
|
C2B
|
A:HEM501
|
4.3
|
43.7
|
1.0
|
NE1
|
A:TRP178
|
4.3
|
57.0
|
1.0
|
C2A
|
A:HEM501
|
4.3
|
50.4
|
1.0
|
C3C
|
A:HEM501
|
4.3
|
64.7
|
1.0
|
C3D
|
A:HEM501
|
4.3
|
63.0
|
1.0
|
C3A
|
A:HEM501
|
4.3
|
52.5
|
1.0
|
C2D
|
A:HEM501
|
4.3
|
57.7
|
1.0
|
N01
|
A:K7U503
|
4.7
|
40.2
|
1.0
|
C06
|
A:K7U503
|
4.7
|
42.6
|
1.0
|
C
|
A:CYS184
|
4.8
|
42.6
|
1.0
|
N
|
A:GLY186
|
4.8
|
47.9
|
1.0
|
CD1
|
A:TRP178
|
4.9
|
50.0
|
1.0
|
N02
|
A:K7U503
|
4.9
|
42.7
|
1.0
|
N
|
A:VAL185
|
5.0
|
41.4
|
1.0
|
|
Iron binding site 2 out
of 4 in 7tsn
Go back to
Iron Binding Sites List in 7tsn
Iron binding site 2 out
of 4 in the Structure of Human Endothelial Nitric Oxide Synthase Heme Domain in Complex with 6-(3-(3,3-Difluoroazetidin-1-Yl)Prop-1-Yn-1-Yl)-4- Methylpyridin-2-Amine
Mono view
Stereo pair view
|
A full contact list of Iron with other atoms in the Fe binding
site number 2 of Structure of Human Endothelial Nitric Oxide Synthase Heme Domain in Complex with 6-(3-(3,3-Difluoroazetidin-1-Yl)Prop-1-Yn-1-Yl)-4- Methylpyridin-2-Amine within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
B:Fe501
b:30.9
occ:1.00
|
FE
|
B:HEM501
|
0.0
|
30.9
|
1.0
|
NA
|
B:HEM501
|
2.0
|
37.5
|
1.0
|
NB
|
B:HEM501
|
2.1
|
29.8
|
1.0
|
ND
|
B:HEM501
|
2.1
|
27.0
|
1.0
|
NC
|
B:HEM501
|
2.1
|
30.3
|
1.0
|
SG
|
B:CYS184
|
2.3
|
32.0
|
1.0
|
C4A
|
B:HEM501
|
3.0
|
31.6
|
1.0
|
C1B
|
B:HEM501
|
3.0
|
26.6
|
1.0
|
C1A
|
B:HEM501
|
3.1
|
34.1
|
1.0
|
C4D
|
B:HEM501
|
3.1
|
35.2
|
1.0
|
C4C
|
B:HEM501
|
3.1
|
36.1
|
1.0
|
C1C
|
B:HEM501
|
3.1
|
33.2
|
1.0
|
C4B
|
B:HEM501
|
3.1
|
35.1
|
1.0
|
C1D
|
B:HEM501
|
3.1
|
36.0
|
1.0
|
CB
|
B:CYS184
|
3.3
|
29.3
|
1.0
|
CHB
|
B:HEM501
|
3.4
|
21.6
|
1.0
|
CHA
|
B:HEM501
|
3.5
|
29.6
|
1.0
|
CHD
|
B:HEM501
|
3.5
|
37.7
|
1.0
|
CHC
|
B:HEM501
|
3.5
|
38.2
|
1.0
|
C03
|
B:K7U503
|
3.9
|
24.9
|
1.0
|
C04
|
B:K7U503
|
4.0
|
29.2
|
1.0
|
CA
|
B:CYS184
|
4.0
|
27.0
|
1.0
|
C2B
|
B:HEM501
|
4.3
|
31.3
|
1.0
|
C3A
|
B:HEM501
|
4.3
|
31.6
|
1.0
|
C2A
|
B:HEM501
|
4.3
|
28.4
|
1.0
|
C07
|
B:K7U503
|
4.3
|
26.4
|
1.0
|
C3B
|
B:HEM501
|
4.3
|
31.9
|
1.0
|
C3D
|
B:HEM501
|
4.3
|
39.2
|
1.0
|
NE1
|
B:TRP178
|
4.3
|
39.2
|
1.0
|
C2C
|
B:HEM501
|
4.3
|
34.5
|
1.0
|
C2D
|
B:HEM501
|
4.3
|
26.1
|
1.0
|
C3C
|
B:HEM501
|
4.3
|
27.5
|
1.0
|
C02
|
B:K7U503
|
4.4
|
22.0
|
1.0
|
C05
|
B:K7U503
|
4.4
|
25.0
|
1.0
|
N01
|
B:K7U503
|
4.8
|
24.9
|
1.0
|
C
|
B:CYS184
|
4.8
|
27.4
|
1.0
|
N
|
B:GLY186
|
4.8
|
31.2
|
1.0
|
C06
|
B:K7U503
|
4.8
|
28.0
|
1.0
|
CD1
|
B:TRP178
|
4.9
|
27.2
|
1.0
|
N02
|
B:K7U503
|
4.9
|
26.1
|
1.0
|
N
|
B:VAL185
|
5.0
|
29.4
|
1.0
|
|
Iron binding site 3 out
of 4 in 7tsn
Go back to
Iron Binding Sites List in 7tsn
Iron binding site 3 out
of 4 in the Structure of Human Endothelial Nitric Oxide Synthase Heme Domain in Complex with 6-(3-(3,3-Difluoroazetidin-1-Yl)Prop-1-Yn-1-Yl)-4- Methylpyridin-2-Amine
Mono view
Stereo pair view
|
A full contact list of Iron with other atoms in the Fe binding
site number 3 of Structure of Human Endothelial Nitric Oxide Synthase Heme Domain in Complex with 6-(3-(3,3-Difluoroazetidin-1-Yl)Prop-1-Yn-1-Yl)-4- Methylpyridin-2-Amine within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
C:Fe501
b:38.8
occ:1.00
|
FE
|
C:HEM501
|
0.0
|
38.8
|
1.0
|
NC
|
C:HEM501
|
2.1
|
49.9
|
1.0
|
NB
|
C:HEM501
|
2.1
|
44.3
|
1.0
|
ND
|
C:HEM501
|
2.1
|
46.8
|
1.0
|
NA
|
C:HEM501
|
2.1
|
45.9
|
1.0
|
SG
|
C:CYS184
|
2.3
|
37.7
|
1.0
|
C1C
|
C:HEM501
|
3.0
|
44.3
|
1.0
|
C4B
|
C:HEM501
|
3.1
|
38.3
|
1.0
|
C1B
|
C:HEM501
|
3.1
|
45.9
|
1.0
|
C4D
|
C:HEM501
|
3.1
|
43.6
|
1.0
|
C4C
|
C:HEM501
|
3.1
|
44.2
|
1.0
|
C1D
|
C:HEM501
|
3.1
|
45.8
|
1.0
|
C1A
|
C:HEM501
|
3.1
|
37.6
|
1.0
|
C4A
|
C:HEM501
|
3.1
|
44.0
|
1.0
|
CB
|
C:CYS184
|
3.3
|
40.0
|
1.0
|
CHC
|
C:HEM501
|
3.4
|
41.6
|
1.0
|
CHA
|
C:HEM501
|
3.5
|
29.9
|
1.0
|
CHB
|
C:HEM501
|
3.5
|
47.6
|
1.0
|
CHD
|
C:HEM501
|
3.5
|
43.8
|
1.0
|
C03
|
C:K7U503
|
4.0
|
38.0
|
1.0
|
CA
|
C:CYS184
|
4.0
|
36.1
|
1.0
|
C04
|
C:K7U503
|
4.0
|
37.0
|
1.0
|
C07
|
C:K7U503
|
4.3
|
30.7
|
1.0
|
C3B
|
C:HEM501
|
4.3
|
43.1
|
1.0
|
C2C
|
C:HEM501
|
4.3
|
55.2
|
1.0
|
NE1
|
C:TRP178
|
4.3
|
47.5
|
1.0
|
C2B
|
C:HEM501
|
4.3
|
35.8
|
1.0
|
C3C
|
C:HEM501
|
4.3
|
49.6
|
1.0
|
C3D
|
C:HEM501
|
4.3
|
46.8
|
1.0
|
C2D
|
C:HEM501
|
4.3
|
39.1
|
1.0
|
C2A
|
C:HEM501
|
4.3
|
40.1
|
1.0
|
C3A
|
C:HEM501
|
4.4
|
38.8
|
1.0
|
C02
|
C:K7U503
|
4.4
|
42.6
|
1.0
|
C05
|
C:K7U503
|
4.5
|
37.0
|
1.0
|
N
|
C:GLY186
|
4.7
|
37.0
|
1.0
|
C
|
C:CYS184
|
4.7
|
31.0
|
1.0
|
N
|
C:VAL185
|
4.9
|
34.8
|
1.0
|
CD1
|
C:TRP178
|
4.9
|
46.2
|
1.0
|
N01
|
C:K7U503
|
4.9
|
39.2
|
1.0
|
C06
|
C:K7U503
|
5.0
|
35.6
|
1.0
|
|
Iron binding site 4 out
of 4 in 7tsn
Go back to
Iron Binding Sites List in 7tsn
Iron binding site 4 out
of 4 in the Structure of Human Endothelial Nitric Oxide Synthase Heme Domain in Complex with 6-(3-(3,3-Difluoroazetidin-1-Yl)Prop-1-Yn-1-Yl)-4- Methylpyridin-2-Amine
Mono view
Stereo pair view
|
A full contact list of Iron with other atoms in the Fe binding
site number 4 of Structure of Human Endothelial Nitric Oxide Synthase Heme Domain in Complex with 6-(3-(3,3-Difluoroazetidin-1-Yl)Prop-1-Yn-1-Yl)-4- Methylpyridin-2-Amine within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
D:Fe501
b:32.1
occ:1.00
|
FE
|
D:HEM501
|
0.0
|
32.1
|
1.0
|
ND
|
D:HEM501
|
1.9
|
34.0
|
1.0
|
NA
|
D:HEM501
|
2.1
|
24.3
|
1.0
|
NC
|
D:HEM501
|
2.1
|
27.8
|
1.0
|
NB
|
D:HEM501
|
2.1
|
32.5
|
1.0
|
SG
|
D:CYS184
|
2.2
|
28.0
|
1.0
|
C1D
|
D:HEM501
|
2.9
|
34.6
|
1.0
|
C4D
|
D:HEM501
|
3.0
|
35.1
|
1.0
|
C4C
|
D:HEM501
|
3.0
|
30.6
|
1.0
|
C1A
|
D:HEM501
|
3.1
|
29.3
|
1.0
|
C4A
|
D:HEM501
|
3.1
|
32.4
|
1.0
|
C1B
|
D:HEM501
|
3.1
|
38.2
|
1.0
|
C4B
|
D:HEM501
|
3.2
|
29.9
|
1.0
|
C1C
|
D:HEM501
|
3.2
|
32.2
|
1.0
|
CB
|
D:CYS184
|
3.3
|
34.5
|
1.0
|
CHD
|
D:HEM501
|
3.3
|
34.2
|
1.0
|
CHA
|
D:HEM501
|
3.4
|
23.9
|
1.0
|
CHB
|
D:HEM501
|
3.5
|
29.5
|
1.0
|
CHC
|
D:HEM501
|
3.5
|
35.6
|
1.0
|
C04
|
D:K7U503
|
3.9
|
36.5
|
1.0
|
C03
|
D:K7U503
|
3.9
|
29.3
|
1.0
|
CA
|
D:CYS184
|
4.0
|
30.2
|
1.0
|
C2D
|
D:HEM501
|
4.2
|
29.2
|
1.0
|
C07
|
D:K7U503
|
4.2
|
27.6
|
1.0
|
C3D
|
D:HEM501
|
4.2
|
34.3
|
1.0
|
C2A
|
D:HEM501
|
4.3
|
34.9
|
1.0
|
C3C
|
D:HEM501
|
4.3
|
32.0
|
1.0
|
C3A
|
D:HEM501
|
4.3
|
30.7
|
1.0
|
C05
|
D:K7U503
|
4.3
|
33.3
|
1.0
|
C2B
|
D:HEM501
|
4.4
|
32.7
|
1.0
|
C2C
|
D:HEM501
|
4.4
|
29.7
|
1.0
|
C3B
|
D:HEM501
|
4.4
|
34.3
|
1.0
|
C02
|
D:K7U503
|
4.4
|
33.0
|
1.0
|
NE1
|
D:TRP178
|
4.4
|
39.7
|
1.0
|
C
|
D:CYS184
|
4.8
|
33.5
|
1.0
|
N
|
D:GLY186
|
4.8
|
23.7
|
1.0
|
C06
|
D:K7U503
|
4.8
|
36.7
|
1.0
|
N01
|
D:K7U503
|
4.8
|
31.1
|
1.0
|
N
|
D:VAL185
|
4.9
|
27.6
|
1.0
|
|
Reference:
D.Vasu,
H.Li,
C.D.Hardy,
T.L.Poulos,
R.B.Silverman.
2-Aminopyridines with A Shortened Amino Sidechain As Potent, Selective, and Highly Permeable Human Neuronal Nitric Oxide Synthase Inhibitors. Bioorg.Med.Chem. V. 69 16878 2022.
ISSN: ESSN 1464-3391
PubMed: 35772285
DOI: 10.1016/J.BMC.2022.116878
Page generated: Fri Aug 9 02:30:54 2024
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