Linked Life Data

1652364

Source:http://linkedlifedata.com/resource/pubmed/id/1652364

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1991-10-2
pubmed:abstractText
7B2 is a highly conserved protein present in many secretory cells. Using in situ hybridization techniques and immunocytochemistry, parameters concerning the biosynthesis and storage of the 7B2 protein were studied in the pituitary gland and median eminence of the clawed toad Xenopus laevis, in relation to the physiological process of background adaptation. 7B2-like immunoreactivity was present in the median eminence, in the neural and anterior pituitary lobes and, particularly, in the melanotrope cells of the intermediate pituitary lobe. In these cells, it coexisted with immunoreactivity to proopiomelanocortin (POMC)-derived alpha-melanocyte stimulating hormone (alpha MSH). The melanotropes of black-adapted animals had abundant 7B2-mRNA and POMC-mRNA; melanotropes of white-adapted toads had only low levels of these mRNAs. The presence of 7B2 in nerve terminals and endocrine cells supports the idea that the protein has a general function in the cellular secretory process. In X. laevis, 7B2 appears to be particularly associated with POMC and alpha MSH and, therefore, may play a role in the regulation of background adaptation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0302-766X
pubmed:author
pubmed:issnType
Print
pubmed:volume
264
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
329-34
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Coordinated expression of 7B2 and alpha MSH in the melanotrope cells of Xenopus laevis. An immunocytochemical and in situ hybridization study.
pubmed:affiliation
Department of Animal Physiology, University of Nijmegen, The Netherlands.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't