Linked Life Data

7895254

Source:http://linkedlifedata.com/resource/pubmed/id/7895254

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1995-4-21
pubmed:abstractText
The atrial gland is an exocrine organ that secretes into the oviduct of Aplysia californica and expresses three homologous genes belonging to the egg-laying hormone gene family. Although post-translational processing of the egg-laying hormone precursor in the neuroendocrine bag cells has been examined in detail, relatively little is known about the post-translational processing of egg-laying hormone-related gene products in the atrial gland. A combination of morphologic techniques that included light-microscopic histology and immunocytochemistry, transmission electron microscopy, and immuno-electron microscopy were used to localize egg-laying hormone-related peptides in the atrial gland and to evaluate the characteristic morphology of their secretory cells. Results of these studies showed that there were at least three major types of secretory cells in the atrial gland (types 1-3). Significantly, of these three cell types, only type 1 was immunoreactive to antisera against egg-laying hormone-related precursor peptides. The immunoreactivity studies established that all three egg-laying hormone-related precursor genes are expressed in type-1 cells and indicated that the processing of these precursors also occurs within the secretory granules of this cell type. Evidence was also obtained that proteolytic processing of the egg-laying hormone-related precursors differed significantly from that observed in the bag cells. In contrast to the bag cells, the NH2-terminal and COOH-terminal products of the egg-laying hormone-related precursors of the atrial gland were not sorted into different types of vesicles.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0302-766X
pubmed:author
pubmed:issnType
Print
pubmed:volume
279
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
13-24
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Ultrastructural localization of egg-laying prohormone-related peptides in the atrial gland of Aplysia californica.
pubmed:affiliation
Department of Human Biological Chemistry and Genetics, University of Texas Medical Branch, Galveston 77555-0645.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't