title: Cloning of mRNA sequence coding for sex-specific storage protein of Bombyx mori.
abstract: A major plasma protein, referred to as SP 1, exhibits sex- and stage-specific expression during the larval development of the silkworm, Bombyx mori. We have isolated a plasmid clone bearing a part of mRNA sequence coding for SP 1 and quantitated the amount of SP 1 mRNA by means of RNA blot hybridization using the cDNA probe. The developmental change in the amount of SP 1 mRNA in the fat body closely reflected that of the hemolymph concentration of SP 1, indicating that the biosynthesis of SP 1 is regulated in a sex- and developmental stage-specific fashion at the level of mRNA.
authors.affiliation: Department of Biology, Tokyo Metropolitan University, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Izumi
authors.forename: H
authors.initials: H
authors.lastname: Sakurai
authors.forename: T
authors.initials: T
authors.lastname: Fujii
authors.forename: W
authors.initials: W
authors.lastname: Ikeda
authors.forename: S
authors.initials: S
authors.lastname: Tomino
mesh_terms: D000273:Adipose Tissue / Q000502:physiology; D000367:Age Factors; D000818:Animals; D001798:Blood Proteins / Q000235:genetics*; D012831:Bombyx / Q000235:genetics* / Q000254:growth & development; D003001:Cloning, Molecular; D004262:DNA Restriction Enzymes; D005786:Gene Expression Regulation; D007301:Insect Hormones / Q000235:genetics*; D012333:RNA, Messenger / Q000235:genetics; D012737:Sex Factors
chemical_list: D001798:Blood Proteins; D007301:Insect Hormones; D012333:RNA, Messenger; D004262:DNA Restriction Enzymes