Apterin
Encyclopedia
Apterin is a furanocoumarin
Furanocoumarin
Furanocoumarins, or furocoumarins, are a class of organic chemical compounds produced by a variety of plants. They are biosynthesized partly through the phenylpropanoid pathway and the mevalonate pathway, which is biosynthesized by a coupling of dimethylallyl pyrophosphate and 7-hydroxycoumarin...

 glucoside
Glucoside
A glucoside is a glycoside that is derived from glucose. Glucosides are common in plants, but rare in animals. Glucose is produced when a glucoside is hydrolysed by purely chemical means, or decomposed by fermentation or enzymes....

 reported to dilate coronary arteries as well as block calcium channel
Calcium channel
A Calcium channel is an ion channel which displays selective permeability to calcium ions. It is sometimes synonymous as voltage-dependent calcium channel, although there are also ligand-gated calcium channels.-Comparison tables:...

s. It can be found plants of the Apiaceae family. It has been isolated from the root of plants in the genus Angelica
Angelica
Angelica is a genus of about 60 species of tall biennial and perennial herbs in the family Apiaceae, native to temperate and subarctic regions of the Northern Hemisphere, reaching as far North as Iceland and Lapland...

, including Garden Angelica
Garden Angelica
Angelica archangelica, commonly known as Garden Angelica, Holy Ghost, Wild Celery, and Norwegian angelica, is a biennial plant from the Apiaceae family Apiaceae family, formerly known as Umbelleferae...

 and in Zizia aptera.
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