Chlorophyll(ide) ''b'' reductase (), ''chlorophyll b reductase'', ''Chl b reductase'') is an
enzyme
Enzymes () are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrate (chemistry), substrates, and the enzyme converts the substrates into different molecule ...
with
systematic name A systematic name is a name given in a systematic way to one unique group, organism, object or chemical substance, out of a specific population or collection. Systematic names are usually part of a nomenclature.
A semisystematic name or semitrivial ...
''7
1-hydroxychlorophyllide-a:NAD(P)
+ oxidoreductase''.
This enzyme
catalyses the following
chemical reaction
A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another. Classically, chemical reactions encompass changes that only involve the positions of electrons in the forming and break ...
: 7
1-hydroxychlorophyllide ''a'' + NAD(P)
+ chlorophyllide ''b'' + NAD(P)H + H
+
This enzyme carries out the first step in the conversion of
chlorophyll ''b'' to
chlorophyll ''a''. It is involved in chlorophyll degradation, which occurs during leaf senescence, and it also forms part of the chlorophyll cycle, which interconverts chlorophyll ''a'' and ''b'' in response to changing light conditions.
References
External links
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