Premium
Biosynthesis of juvenile hormone in the cecropia moth. labelling pattern from 1‐[ 14 C]‐propionate through degradation to single carbon atom derivatives
Author(s) -
Peter Martin G.,
Dahm Karl H.
Publication year - 1975
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19750580407
Subject(s) - propionate , chemistry , cecropia , juvenile hormone , labelling , carbon 14 , carbon atom , degradation (telecommunications) , hormone , stereochemistry , biochemistry , organic chemistry , ring (chemistry) , botany , telecommunications , physics , quantum mechanics , computer science , biology
In the adult made cecropia moth, 1‐[ 14 C]‐propionate is incorporated specifically into juvenile hormone I ( 1 ). By chemical degradation it was found that only C(7) and C(11) are labelled, each carbon atom bearing 50% of the radioactivity originally present in JH‐I. It is concluded that propionate serves as a precursor of homomevalonate, which in turn is a precursor for JH‐I. Application of 2‐[ 14 C]‐propionate and 3‐[ 14 C]‐propionate leads to extensive randomization of the label. Apparently propionate is metabolized such that C(2) and C(3) can be reused as smaller fragments–probably acetate–while C(1) is either highly diluted or removed from the propionate in a metabolically inactive form.