Literature summary extracted from
Blount, M.A.; Zoraghi, R.; Bessay, E.P.; Beasley, A.; Francis, S.H.; Corbin, J.D.
Conversion of phosphodiesterase-5 (PDE5) catalytic site to higher affinity by PDE5 inhibitors (2007), J. Pharmacol. Exp. Ther., 323, 730-737.
Activating Compound
EC Number |
Activating Compound |
Comment |
Organism |
Structure |
---|
3.1.4.35 |
cGMP |
preincubation with cGMP increases catalytic activity for cGMP degradation, this increase may be caused by binding of cGMP to either the PDE5 allosteric sites, catalytic sites, or both. Full-length GAF-B subdomain conjoined with catalytic domain is sufficient for this conversion |
Bos taurus |
|
Cloned(Commentary)
EC Number |
Cloned (Comment) |
Organism |
---|
3.1.4.35 |
expression in Sf9 system |
Bos taurus |
Inhibitors
EC Number |
Inhibitors |
Comment |
Organism |
Structure |
---|
3.1.4.35 |
sildenafil |
preincubation with cGMP increases catalytic activity for cGMP degradation, but also for binding of inhibitor |
Bos taurus |
|
3.1.4.35 |
tadalafil |
preincubation with cGMP increases catalytic activity for cGMP degradation, but also for binding of inhibitor |
Bos taurus |
|
3.1.4.35 |
vardenafil |
preincubation with cGMP increases catalytic activity for cGMP degradation, but also for binding of inhibitor |
Bos taurus |
|
Natural Substrates/ Products (Substrates)
EC Number |
Natural Substrates |
Organism |
Comment (Nat. Sub.) |
Natural Products |
Comment (Nat. Pro.) |
Rev. |
Reac. |
---|
3.1.4.35 |
additional information |
Bos taurus |
preincubation with cGMP increases catalytic activity for cGMP degradation, thus elevated cellular cGMP initiates a physiological negative feedback on the cGMP pathway by increasing the affinity of the PDE5 catalytic site for cGMP |
? |
- |
? |
|
Organism
EC Number |
Organism |
UniProt |
Comment |
Textmining |
---|
3.1.4.35 |
Bos taurus |
- |
isoform PDE5 |
- |
Substrates and Products (Substrate)
EC Number |
Substrates |
Comment Substrates |
Organism |
Products |
Comment (Products) |
Rev. |
Reac. |
---|
3.1.4.35 |
additional information |
preincubation with cGMP increases catalytic activity for cGMP degradation, thus elevated cellular cGMP initiates a physiological negative feedback on the cGMP pathway by increasing the affinity of the PDE5 catalytic site for cGMP |
Bos taurus |
? |
- |
? |
|