title: P19: a female and tissue specifically expressed gene in Schistosoma mansoni, regulated by pairing with the male.
abstract: A female-specific sequence was isolated from a cDNA library of Schistosoma mansoni and further characterized. Expression of the corresponding gene (p19) depends on pairing with a male. In situ hybridization and immunohistology experiments revealed exclusive expression of the gene in the cells of the vitellarium, suggesting a function in egg formation. In addition, experimental evidence for cross-linking of the protein under oxidative conditions supports the assumption that the p19 gene may code for an egg-shell precursor protein.
authors.affiliation: Institute for Genetics, Genetic Parasitology, 40225 Düsseldorf, Germany.
authors.forename: A
authors.initials: A
authors.lastname: Michel
authors.forename: J
authors.initials: J
authors.lastname: Knobloch
authors.forename: W
authors.initials: W
authors.lastname: Kunz
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D015153:Blotting, Western; D003001:Cloning, Molecular; D004527:Egg Proteins / Q000096:biosynthesis / Q000235:genetics*; D005260:Female; D005786:Gene Expression Regulation / Q000502:physiology*; D015801:Helminth Proteins / Q000096:biosynthesis / Q000235:genetics*; D017403:In Situ Hybridization; D008297:Male; D008969:Molecular Sequence Data; D016366:Open Reading Frames; D012333:RNA, Messenger / Q000096:biosynthesis / Q000235:genetics; D020133:Reverse Transcriptase Polymerase Chain Reaction; D012550:Schistosoma mansoni / Q000235:genetics* / Q000378:metabolism
chemical_list: D004527:Egg Proteins; D015801:Helminth Proteins; D012333:RNA, Messenger