The Egg-Laying Hormone Family: Precursors, Products, and Functions
نویسندگان
چکیده
منابع مشابه
Proteolytic Processing of the AprVsia R3- 14 Neuropeptide Precursors Egg-Laying Hormone
A number of animal behaviors are influenced by the actions of neuropeptides that arise from the processing of complex protein precursors. In this report we investigate the proteolytic processing of neuropeptide precursors expressed in the Aplysia californica bag cells, which govern egg-laying, and neurons R3-14, which mediate aspects of cardiac output. Peptides were purified by fractionation on...
متن کاملStructure and expression of the egg-laying hormone gene family in Aplysia.
Transcription of the egg-laying hormone (ELH) gene family was examined by characterizing homologous cDNA clones from abdominal ganglion and atrial gland cDNA libraries. All cDNAs contain an exon that spans the coding region (exon III) and one or two additional exons. The tissue-specific expression of the ELH gene family was confirmed by the observation that exon III encodes the ELH precursor pr...
متن کاملEgg-laying hormone genes of Aplysia: evolution of the ELH gene family.
Evolution of the egg-laying hormone (ELH) gene family was examined in the genus Aplysia using genomic Southern blotting, gene cloning, and immunocytochemical techniques to identify and characterize homologous sequences. Most of the species examined have fewer than the 4-5 ELH-related genes present in the A. californica genome (Mahon et al., 1985; Scheller et al., 1983). In A. parvula there are ...
متن کاملEgg-laying.
C. elegans hermaphrodites are self-fertile, and their rate and temporal pattern of egg-laying are modulated by diverse environmental cues. Egg-laying behavior has served as an important phenotypic assay for the genetic dissection of neuronal signal transduction mechanisms. This chapter reviews our current understanding of the neuronal and neurochemical mechanisms underlying the control of egg-l...
متن کاملProteolytic processing of egg-laying hormone-related precursors in Aplysia. Identification of peptide regions critical for biological activity.
The atrial gland of the marine mollusk Aplysia californica is an exocrine organ that expresses at least three genes belonging to the egg-laying hormone (ELH) family. In order to study the post-translational processing of the ELH-related gene products in the atrial gland and how it compares to the bag cells, peptides were isolated from the atrial gland and chemically characterized. The A- and B-...
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ژورنال
عنوان ژورنال: The Biological Bulletin
سال: 1989
ISSN: 0006-3185,1939-8697
DOI: 10.2307/1541935