Arachidonoyl-conjugates, anandamide and N-arachidonoyldopamine,
were identified in D. melanogaster extracts (Table 1).
Anandamide was identified in the head and thorax–abdomen extracts
(Supplementary Material, Fig. S1) while N-arachidonoyldopamine
was only identified in the head extracts. The head and
thorax–abdomen extract samples were spiked with synthetic
anandamide and reanalyzed. An increase in the integration area
of the identified anandamide peak provides additional validation
for the identification of anandamide in the head and thorax–abdomen
(Supplementary Material, Table S1). LC–MS/MS analysis of the
anandamide parent ion from a synthetic standard and the thorax–
abdomen extract yielded product ion scans with the expected fragment
ion for N-acylethanolamines, 62.1 (Supplementary Material,
Fig. S2). This result provides additional validation to our identification
of anandamide in the D. melanogaster extracts. The identification
of these eicosanoids is of note since anandamide was not
identified in D. melanogaster third instar larvae [8] and arachidonicacid and related metabolites were not identified in the Drosophila
media (data not shown).
Arachidonoyl-conjugates, anandamide and N-arachidonoyldopamine,
were identified in D. melanogaster extracts (Table 1).
Anandamide was identified in the head and thorax–abdomen extracts
(Supplementary Material, Fig. S1) while N-arachidonoyldopamine
was only identified in the head extracts. The head and
thorax–abdomen extract samples were spiked with synthetic
anandamide and reanalyzed. An increase in the integration area
of the identified anandamide peak provides additional validation
for the identification of anandamide in the head and thorax–abdomen
(Supplementary Material, Table S1). LC–MS/MS analysis of the
anandamide parent ion from a synthetic standard and the thorax–
abdomen extract yielded product ion scans with the expected fragment
ion for N-acylethanolamines, 62.1 (Supplementary Material,
Fig. S2). This result provides additional validation to our identification
of anandamide in the D. melanogaster extracts. The identification
of these eicosanoids is of note since anandamide was not
identified in D. melanogaster third instar larvae [8] and arachidonicacid and related metabolites were not identified in the Drosophila
media (data not shown).
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