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Ribeiro, J.M. et al.

Ribeiro, Francischetti,

Platelet-activating-factor-hydrolyzing phospholipase C in the salivary glands and saliva of the mosquito Culex quinquefasciatus.

A phospholipase C activity specific for platelet-activating factor (PAF), named PAF phosphorylcholine hydrolase, was found in the salivary glands and saliva of the human-feeding mosquito Culex quinquefasciatus. The enzymatic activity was demonstrated by inhibition of PAF-induced platelet aggregation, and by identification of substrate consumption and production of diacyl glyceride by electrospray-ionisation mass spectrometry. The activity has a neutral optimal pH and an apparent molecular mass of 40-50 kDa. Two anthropophilic mosquito species, Aedes aegypti and Anopheles gambiae, do not have this salivary activity. The results are interpreted within the evolutionary context of the genera Culex, Aedes and Anopheles.[1]

References

Platelet-activating-factor-hydrolyzing phospholipase C in the salivary glands and saliva of the mosquito Culex quinquefasciatus. Ribeiro, J.M., Francischetti, I.M. J. Exp. Biol. (2001) [Pubmed]

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