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Iron in PDB 7tso: Structure of Human Endothelial Nitric Oxide Synthase Heme Domain in Complex with 6-(3-(3,3-Difluoroazetidin-1-Yl)Propyl)-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)Propyl)-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)Propyl)-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)Propyl)-4-Methylpyridin- 2-Amine, PDB code: 7tso 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) 39.12 / 2.00
Space group P 1 21 1
Cell size a, b, c (Å), α, β, γ (°) 59.718, 153.491, 109.026, 90, 90.54, 90
R / Rfree (%) 22.1 / 27.3

Other elements in 7tso:

The structure of Structure of Human Endothelial Nitric Oxide Synthase Heme Domain in Complex with 6-(3-(3,3-Difluoroazetidin-1-Yl)Propyl)-4-Methylpyridin- 2-Amine also contains other interesting chemical elements:

Fluorine (F) 8 atoms
Chlorine (Cl) 4 atoms
Zinc (Zn) 2 atoms
Gadolinium (Gd) 4 atoms

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)Propyl)-4-Methylpyridin- 2-Amine (pdb code 7tso). 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)Propyl)-4-Methylpyridin- 2-Amine, PDB code: 7tso:
Jump to Iron binding site number: 1; 2; 3; 4;

Iron binding site 1 out of 4 in 7tso

Go back to Iron Binding Sites List in 7tso
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)Propyl)-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)Propyl)-4-Methylpyridin- 2-Amine within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Fe501

b:47.9
occ:1.00
FE A:HEM501 0.0 47.9 1.0
ND A:HEM501 2.0 66.4 1.0
NA A:HEM501 2.1 52.9 1.0
NC A:HEM501 2.1 63.4 1.0
NB A:HEM501 2.2 59.6 1.0
SG A:CYS184 2.3 40.3 1.0
C4D A:HEM501 3.0 63.2 1.0
C1D A:HEM501 3.0 64.1 1.0
C1A A:HEM501 3.0 57.3 1.0
C4C A:HEM501 3.1 64.3 1.0
C4A A:HEM501 3.1 53.7 1.0
C1C A:HEM501 3.1 57.9 1.0
C1B A:HEM501 3.1 60.9 1.0
C4B A:HEM501 3.2 60.0 1.0
CHA A:HEM501 3.4 60.7 1.0
CHD A:HEM501 3.4 60.8 1.0
CB A:CYS184 3.4 39.6 1.0
CHB A:HEM501 3.5 56.4 1.0
CHC A:HEM501 3.5 60.7 1.0
C04 A:K8F503 3.9 46.0 1.0
C03 A:K8F503 3.9 44.0 1.0
C07 A:K8F503 4.0 43.9 1.0
CA A:CYS184 4.2 34.1 1.0
C3D A:HEM501 4.2 63.5 1.0
C2D A:HEM501 4.2 63.2 1.0
C2A A:HEM501 4.3 52.9 1.0
C3A A:HEM501 4.3 53.1 1.0
C3C A:HEM501 4.3 59.4 1.0
C2C A:HEM501 4.3 55.0 1.0
C2B A:HEM501 4.4 59.5 1.0
C3B A:HEM501 4.4 58.1 1.0
C05 A:K8F503 4.4 50.7 1.0
C02 A:K8F503 4.5 51.9 1.0
NE1 A:TRP178 4.7 63.8 1.0
C06 A:K8F503 4.9 53.8 1.0
N01 A:K8F503 4.9 53.9 1.0

Iron binding site 2 out of 4 in 7tso

Go back to Iron Binding Sites List in 7tso
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)Propyl)-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)Propyl)-4-Methylpyridin- 2-Amine within 5.0Å range:
probe atom residue distance (Å) B Occ
B:Fe501

b:28.5
occ:1.00
FE B:HEM501 0.0 28.5 1.0
ND B:HEM501 2.0 31.6 1.0
NB B:HEM501 2.1 36.8 1.0
NC B:HEM501 2.1 24.3 1.0
NA B:HEM501 2.1 34.4 1.0
SG B:CYS184 2.3 20.9 1.0
C1D B:HEM501 3.0 32.4 1.0
C4D B:HEM501 3.0 31.5 1.0
C1B B:HEM501 3.1 30.3 1.0
C4A B:HEM501 3.1 33.0 1.0
C4B B:HEM501 3.1 30.3 1.0
C4C B:HEM501 3.1 29.2 1.0
C1C B:HEM501 3.1 28.6 1.0
C1A B:HEM501 3.1 29.3 1.0
CB B:CYS184 3.3 19.9 1.0
CHB B:HEM501 3.4 25.2 1.0
CHD B:HEM501 3.4 25.6 1.0
CHA B:HEM501 3.5 27.7 1.0
CHC B:HEM501 3.5 30.2 1.0
CA B:CYS184 4.0 27.8 1.0
C03 B:K8F503 4.1 35.5 1.0
C3D B:HEM501 4.2 33.6 1.0
C2D B:HEM501 4.2 30.5 1.0
C04 B:K8F503 4.2 34.2 1.0
C2B B:HEM501 4.3 36.9 1.0
C3B B:HEM501 4.3 31.0 1.0
C3A B:HEM501 4.3 37.8 1.0
C2C B:HEM501 4.4 34.3 1.0
C2A B:HEM501 4.4 36.0 1.0
C3C B:HEM501 4.4 36.3 1.0
NE1 B:TRP178 4.4 27.5 1.0
C02 B:K8F503 4.5 36.0 1.0
C07 B:K8F503 4.5 30.8 1.0
C B:CYS184 4.8 25.0 1.0
N B:GLY186 4.8 24.4 1.0
C05 B:K8F503 4.8 38.2 1.0
N B:VAL185 4.9 22.5 1.0
N02 B:K8F503 5.0 24.2 1.0

Iron binding site 3 out of 4 in 7tso

Go back to Iron Binding Sites List in 7tso
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)Propyl)-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)Propyl)-4-Methylpyridin- 2-Amine within 5.0Å range:
probe atom residue distance (Å) B Occ
C:Fe501

b:38.7
occ:1.00
FE C:HEM501 0.0 38.7 1.0
NC C:HEM501 2.0 56.6 1.0
ND C:HEM501 2.1 47.5 1.0
NA C:HEM501 2.1 45.9 1.0
NB C:HEM501 2.1 45.9 1.0
SG C:CYS184 2.4 38.5 1.0
C1C C:HEM501 3.0 43.1 1.0
C4B C:HEM501 3.1 35.0 1.0
C4C C:HEM501 3.1 49.7 1.0
C1A C:HEM501 3.1 44.5 1.0
C4D C:HEM501 3.1 53.6 1.0
C1D C:HEM501 3.1 50.5 1.0
C4A C:HEM501 3.1 45.8 1.0
C1B C:HEM501 3.1 44.0 1.0
CHC C:HEM501 3.4 33.4 1.0
CHA C:HEM501 3.4 47.4 1.0
CB C:CYS184 3.4 43.8 1.0
CHD C:HEM501 3.5 48.7 1.0
CHB C:HEM501 3.5 41.2 1.0
C03 C:K8F503 4.1 42.6 1.0
C04 C:K8F503 4.1 39.4 1.0
CA C:CYS184 4.2 32.3 1.0
C2C C:HEM501 4.2 56.7 1.0
C3C C:HEM501 4.3 50.5 1.0
C3B C:HEM501 4.3 47.0 1.0
C2A C:HEM501 4.3 52.8 1.0
C2B C:HEM501 4.3 41.3 1.0
C3A C:HEM501 4.3 44.8 1.0
C2D C:HEM501 4.3 37.1 1.0
C3D C:HEM501 4.3 43.0 1.0
C07 C:K8F503 4.4 46.5 1.0
C05 C:K8F503 4.6 48.1 1.0
NE1 C:TRP178 4.6 43.2 1.0
C02 C:K8F503 4.6 48.4 1.0
N C:GLY186 4.7 35.9 1.0
C C:CYS184 4.9 30.4 1.0
N01 C:K8F503 5.0 45.9 1.0
C06 C:K8F503 5.0 50.1 1.0

Iron binding site 4 out of 4 in 7tso

Go back to Iron Binding Sites List in 7tso
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)Propyl)-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)Propyl)-4-Methylpyridin- 2-Amine within 5.0Å range:
probe atom residue distance (Å) B Occ
D:Fe501

b:24.8
occ:1.00
FE D:HEM501 0.0 24.8 1.0
ND D:HEM501 2.0 34.2 1.0
NA D:HEM501 2.1 27.9 1.0
NB D:HEM501 2.1 25.6 1.0
NC D:HEM501 2.2 28.8 1.0
SG D:CYS184 2.2 24.8 1.0
C1B D:HEM501 3.0 29.4 1.0
C4A D:HEM501 3.0 24.7 1.0
C1D D:HEM501 3.0 26.6 1.0
C4D D:HEM501 3.1 31.5 1.0
C1A D:HEM501 3.1 26.4 1.0
C4C D:HEM501 3.1 24.8 1.0
C4B D:HEM501 3.2 25.0 1.0
C1C D:HEM501 3.2 24.4 1.0
CHB D:HEM501 3.3 23.4 1.0
CB D:CYS184 3.3 39.7 1.0
CHD D:HEM501 3.4 27.0 1.0
CHA D:HEM501 3.5 21.7 1.0
CHC D:HEM501 3.6 28.8 1.0
C03 D:K8F503 4.0 22.1 1.0
CA D:CYS184 4.1 26.4 1.0
C04 D:K8F503 4.2 34.2 1.0
C2D D:HEM501 4.3 30.2 1.0
C3A D:HEM501 4.3 37.2 1.0
C3D D:HEM501 4.3 34.8 1.0
C2B D:HEM501 4.3 28.2 1.0
C2A D:HEM501 4.3 34.1 1.0
C3B D:HEM501 4.3 32.6 1.0
C3C D:HEM501 4.4 36.4 1.0
C2C D:HEM501 4.4 32.8 1.0
C02 D:K8F503 4.5 33.4 1.0
C07 D:K8F503 4.5 28.4 1.0
NE1 D:TRP178 4.5 46.8 1.0
N D:GLY186 4.7 26.8 1.0
C D:CYS184 4.8 18.4 1.0
N D:VAL185 4.8 19.7 1.0
N02 D:K8F503 4.9 36.4 1.0
C05 D:K8F503 4.9 36.2 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: Thu Aug 7 06:12:14 2025

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