Premium
Vitellogenin gene of the silkworm, Bombyx mori : Structure and sex‐dependent expression
Author(s) -
Yano Ken-ichi,
Sakurai Mayumi Toriyama,
Izumi Susumu,
Tomino Shiro
Publication year - 1994
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/0014-5793(94)01265-2
Subject(s) - vitellogenin , bombyx mori , ecdysis , biology , gene , exon , bombyx , intron , furin , vitellogenins , microbiology and biotechnology , gene expression , genetics , biochemistry , vitellogenesis , moulting , larva , enzyme , embryo , botany , oocyte
Vitellogenin of Bombyx mori is a precursor of major yolk protein synthesized in the female fat body at larval—pupal ecdysis. The gene for B. mori vitellogenin is composed of seven exons interspersed by six introns. Developmental profile of the primary transcript of the gene indicated that the biosynthesis of B. mori vitellogenin is regulated transcriptionally in a sex‐ and stage‐dependent manner in the fat body. The Arg‐X‐Arg‐Arg sequence, which conforms to the recognition site of mammalian furin, occurs in a region just upstream of the putative proteolytic cleavage site of B. mori previtellogenin.