The structure of the Drosophila melanogaster sex peptide: Identification of hydroxylated isoleucine and a strain variation in the pattern of amino acid hydroxylation.

Abstract excerpt

In Drosophila melanogaster mating triggers profound changes in the behaviour and reproductive physiology of the female. Many of these post-mating effects are elicited by sex peptide (SP), a 36-mer pheromone made in the male accessory gland and passed to the female in the seminal fluid. The peptide comprises several structurally and functionally distinct domains, one of which consists of five 4-hydroxyprolines and...

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