Abstract:
:Only recently have products of the enzymatic breakdown of the chlorophylls been characterized for the first time. All catabolites isolated until now from a chlorophyte and from angiosperms have in common the position at which the primary oxygenative ring cleavage occurs, yielding linear tetrapyrroles (19-formyl-1[21H,22H]bilinones). In vivo studies of 18,18O2 incorporation in one of the chlorophyll catabolites isolated from Chlorella protothecoides show unequivocally that of the two oxygen atoms inserted into the pigment, only the formyl oxygen originates from dioxygen whereas the other one, the lactamic oxygen atom, derives from water. These findings suggest a monooxygenase-catalyzed primary process in the catabolism of chlorophyll.
journal_name
FEBS Lettjournal_title
FEBS lettersauthors
Curty C,Engel N,Gossauer Adoi
10.1016/0014-5793(95)00348-dsubject
Has Abstractpub_date
1995-05-01 00:00:00pages
41-4issue
1eissn
0014-5793issn
1873-3468pii
0014-5793(95)00348-Djournal_volume
364pub_type
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