Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1997-11-7
pubmed:abstractText
Cellubrevin is one of the proteins involved in the docking and fusion of secretory granules to the plasma membrane. It has been reported that cellubrevin is widely distributed in both neural and non-neural cells, including insulin-secreting B-cells. This study aims to demonstrate by immunohistochemical techniques that cellubrevin is localized in insulin-secreting cells and further to examine whether it might occur in glucagon- and somatostatin-secreting cells in the pancreatic islet in the rat and mouse. We used the polyclonal antibody against the N-terminal peptide whose specificity was confirmed by Western blot analysis. Double immuno-staining demonstrated that cellubrevin was localized in insulin-containing cells, but both glucagon-containing and somatostatin-containing cells lacked the immuno-reactivity. Immuno-electron microscopic analysis revealed the localization of cellubrevin on the margin of secretory granules near the plasma membrane but not in the granules closer to the nucleus. These observations support the view that cellubrevin in the pancreatic islet is expressed on the membrane of the secretory granules in B-cells at the stage of exocytosis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0914-9465
pubmed:author
pubmed:issnType
Print
pubmed:volume
60
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
289-95
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
1997
pubmed:articleTitle
Immunohistochemical localization of cellubrevin on secretory granules in pancreatic B-cells.
pubmed:affiliation
Department of Physiology, Shiga University of Medical Science, Otsu, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't