Ergosterol
CAS:
57-87-4
Trivial
names: Ergosterol; Provitamin D2
Systematic name: (22E)-Ergosta-5,7,22-trien-3-Beta-ol
Molecular
formula: C28H44O
Assay:
90% Min, 95% Min
Ergosterol is a plant sterol that is converted into
vitamin D by ultraviolet radiation.
References:
Yoshida, Y. and
Aoyama, Y. (1991) Cytochromes P-450 in the ergosterol biosynthesis.
In Ruckpaul, K. and Rein, H., Eds. Frontiers in Biotransformation,
vol. 4: Microbial and Plant Cytochromes P-450: Biochemical Characteristics,
Genetic Engineering and Practical Implications. Taylor & Francis,
London, pp. 127-148.
Kelly, S.L., Lamb, D.C., Corran, A.J., Baldwin, B.C., Parks, L.W.
and Kelly, D.E. (1995) Purification and reconstitution of activity
of Saccharomyces cerevisiae P450 61, a sterol 22-desaturase. FEBS
Lett. 377, 217-220.
Ergosterol
is the biological precursor to Vitamin D2. It is turned into viosterol
by ultraviolet light, and is then converted into ergocalciferol, which
is a form of Vitamin D.
calciferol,
cholecarciferol
D, ergocalciferol,
steroid
alcohol, sterol,
viosterol,
vitamin
D.
Ergosterol
Biosynthesis:
