To link to the content of EndoNet use the EndoNet ID that is given on the detail
pages in the format ENX0000, where X is a place holder for the type of
the component (e. g. R for receptor or C for anatomical structure).
As URL
for the linking append this ID to the detail page for this type of component.
For an hormone that would be:
Melatonin synthesis is influenced by light and regulated by the biological clock, i.e. the suprachiasmatic nucleus (SCN), through polysynaptic noradrenergic innervation, which involves binding of noradrenalin (NA) to the ß1-adrenergic receptor on the pinealocytes to activate N-acetyltransferase. [1]