Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1995-2-9
pubmed:abstractText
An antiserum was raised against chicken thimet oligopeptidase (TOP), and specific antibodies were isolated by immunoadsorption. The specificity of the antibodies was confirmed by immunoblot analysis with the cell extract of cultured chicken fibroblasts. Subcellular localization of TOP in normal and Rous sarcoma virus-transformed chicken embryonic fibroblasts was investigated by indirect immunofluorescence staining with affinity-purified, monospecific anti-TOP antibodies. In addition to the diffuse reaction expected for a cytosolic enzyme, a punctate, cytoplasmic localization was observed. The appearance of the organelles containing TOP did not correspond to that expected for secondary lysosomes, mitochondria, endoplasmic reticulum, or Golgi apparatus, but did resemble that of endosomes. When cells were allowed to internalize Lucifer yellow before fixation, some of the organelles containing TOP were observed to contain Lucifer yellow. Moreover, those organelles containing TOP were positively immunolabeled with the anti-transferrin receptor antibody. We conclude that part of the TOP in chicken embryonic fibroblasts is located in endosomes and discuss the implications of this.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0014-4827
pubmed:author
pubmed:issnType
Print
pubmed:volume
216
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
80-5
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Immunolocalization of thimet oligopeptidase in chicken embryonic fibroblasts.
pubmed:affiliation
Department of Anatomy and Developmental Biology, Jefferson Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania 19107.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't