''Hedysarum sulphurescens'', the yellow sweetvetch or white sweetvetch, is a perennial herb species.
Leucocyanidin reductase
In enzymology, a leucoanthocyanidin reductase () (LAR, aka leucocyanidin reductase or LCR) is an enzyme that catalyzes the chemical reaction
:(2R,3S)-catechin + NADP+ + H2O \rightleftharpoons 2,3-trans-3,4-cis-leucocyanidin + NADPH + H+
The 3 s ...
(LCR) uses 2,3-trans-3,4-cis-
leucocyanidin
Leucocyanidin is a colorless chemical compound that is a member of the class of natural products known as leucoanthocyanidins.
Chemistry
(+)-Leucocyanidin can be synthesized from (+)-dihydroquercetin by reduction with sodium borohydride.
Mola ...
to produce (+)-
catechin
Catechin is a flavan-3-ol, a type of secondary metabolite providing antioxidant roles in plants. It belongs to the subgroup of polyphenols called flavonoids.
The name of the catechin chemical family derives from ''catechu'', which is the tannic ...
and is the first enzyme in the
proanthocyanidins
Proanthocyanidins are a class of polyphenols found in many plants, such as cranberry, blueberry, and grape seeds. Chemically, they are oligomeric flavonoids. Many are oligomers of catechin and epicatechin and their gallic acid esters. More complex ...
(PA)-specific pathway. Its activity has been measured in leaves, flowers, and seeds of ''H. sulfurescens''.
Leucocyanidin reductase activity and accumulation of proanthocyanidins in developing legume tissues, B Skadhauge, MY Gruber, KK Thomsen and DV Wettstein
/ref>
See also
* List of Canadian plants by family F
''Main page:'' List of Canadian plants by family
Families:
List of Canadian plants by family A, A , List of Canadian plants by family B, B , List of Canadian plants by family C, C , List of Canadian plants by family D, D , List of Canadian ...
External links
References
Hedysareae
{{Faboideae-stub