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A different kind of breakdown. The structure of At-NCC-3, a polar nonfluorescent chlorophyll catabolite (NCC) from the model plant Arabidopsis thaliana, deviates curiously from the known chlorophyll-breakdown pathway in higher plants: At-NCC-3 carries a hydroxymethyl group instead of a methyl group at C(7), a much discussed, specific structural link of the known NCCs with chlorophyll(ide) a.
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Müller et al. (2005) studied this question.
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