All variants
of the flavonoid biosynthesis correlated because the groove
itself, yaiut lines Sikimat and acetate-malonate pathway. The
model of the biosynthesis of flavonoids
has been suggested by Birch. According Birch,
the steps of the biosynthesis of flavonoids pertamadari a
C6-C3 berkombinasi
units with three
units C2 menghasilakan -C3-C6 units (C2 +
C2 + C2).
C15 framework that has been dihasilakan
darikombinasi oxygen containing functional groups on yangdiperlukan position. A ring of the flavonoid
structure derived from the polyketide route, yaitukondensasi
of three units of acetate or malonate. While
the B ring and three atomkarbon of the propane
chain is Adari
phenylpropanoid path (via shikimic.) Therefore,
the basic structure of the carbon product darikombinasi
biosynthesis of flavonoids
between two major avenues for the aromatic ring, called
shikimic and acetate-malonate path .
As a result of various
perubahanyang caused by enzymes, the third carbon atom of the propane chain
can produce a variety of functional groups, such as double bonds, hydroxyl, carbonyl groups, and so
on.
Structure
of flavonoids undergo
secondary reactions, sepertihidroksilasi,
oxidation (including training carbonyl), glycosylation,
methylation, isoprenilasi, cyclization, and the
other for the treatment of
enzimyang present in the organism.
The product of the enzymatic reaction
dapatmenghasilkan flavonoid compounds
with different types
kerangkadasar different as shown on the classification of flavonoids klasifikasiatau above (Tukiran, 2010)
Figure 9. Principal reaction Flavonoid Biosynthesis
According
biosynthesis,
the formation of
flavonoid
started
denganmemperpanjang
units
fenilpropanaid
(C3-C6)
derived
from p-amino
derivatives
sinamatseperti
kumarat,
times
kafeat
acid,
ferulic acid,
or
asamsinapat.
The experiments
have also shown
that
calkon
and
flavanones
isomer
are
comparable
also serves
as an intermediate
in the biosynthesis
of
various
types of
other
flavonoids.
I have a problem of how the formation of flavonoids that began with the extension unit fenilpropanaid (C3-C6) derived from p-amino derivatives such kumarat cinnamic acid, kafeat time, ferulic acid, or asamsinapat ? and what calkon and flavanones that are comparable isomer serves as an intermediary in the biosynthesis of various types of other flavonoids.
BalasHapusplease your explain guys
thanks
I will try to answer your questions as I can see from the post biosintesys. According biosynthesis, starting with the formation of flavonoids extend fenilpropanaid unit (C3-C6) derived from p-amino derivatives sinamatseperti kumarat, acid kafeat time, ferulic acid, or asamsinapat.
BalasHapusModel biosynthesis of flavonoids has been suggested by Birch. According to Birch, flavonoid biosynthesis steps pertamadari a C6-C3 combines with three units units resulting in C2-C3-C6 units (C2 + C2 + C2). C15 framework has dihasilakan darikombinasi oxygenated functional groups on the required position. and also experiments also showed that the isomer comparable calkon and flavanones also serves as an intermediary in the biosynthesis of various types of other flavonoids.
that my answer haviz i just to know about that :)
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