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Chlorophyll(ide) b reductase

Field	Value
Name	Chlorophyll(ide) b reductase
EC_number	1.1.1.294
image	Chlorophyll(ide)_b_reductase_reaction.PNG
alt	Chlorophyll(ide)_b_reductase_reaction

Chlorophyll(ide) b reductase (), chlorophyll b reductase, Chl b reductase) is an enzyme with systematic name 71-hydroxychlorophyllide-a:NAD(P)+ oxidoreductase. This enzyme catalyses the following chemical reaction

: 71-hydroxychlorophyllide a + NAD(P)+ \rightleftharpoons 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

(November 1996). "Substrate specificity of chlorophyll(ide) b reductase in etioplasts of barley (Hordeum vulgare L.)". European Journal of Biochemistry.
(December 1998). "Chlorophyll a formation in the chlorophyll b reductase reaction requires reduced ferredoxin". The Journal of Biological Chemistry.
(2006). "Chlorophyll degradation during senescence". Annual Review of Plant Biology.
(January 1996). "Conversion of chlorophyll b to chlorophyll a via 7-hydroxymethyl chlorophyll". The Journal of Biological Chemistry.
(2002). "Biosynthesis of chlorophyll b and the chlorophyll cycle". Photosynthesis Research.

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

ec-1.1.1

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