Title : Viewpoint: How large is the carbon isotope fractionation of the photorespiratory enzyme glycine decarboxylase?

Pub. Date : 2006 Oct

PMID : 32689301






2 Functional Relationships(s)
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1 Despite the intense effort developed over the past 10 years to determine the 12C / 13C isotope fractionation associated with photorespiration, much uncertainty remains about the amplitude, and even the sign, of the 12C / 13C isotope fractionation of glycine decarboxylase, the enzyme that produces CO2 during the photorespiratory cycle. Carbon-13 glycine decarboxylase Homo sapiens
2 In fact, leaf gas-exchange data have repeatedly indicated that CO2 evolved by photorespiration is depleted in 13C compared with the source material, while glycine decarboxylase has mostly favoured 13C in vitro. Carbon-13 glycine decarboxylase Homo sapiens