PRIGENT, SA; LEMOINE, NR; HUGHES, CM; PLOWMAN, GD; SELDEN, C; GULLICK, WJ; (1992) EXPRESSION OF THE C-ERBB-3 PROTEIN IN NORMAL HUMAN ADULT AND FETAL TISSUES. ONCOGENE , 7 (7) 1273 - 1278.
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c-erbB-3 is a member of the type I family of growth factor receptors which includes the epidermal growth factor (EGF) receptor and c-erhB-2. Whereas for EGF receptor and c-erbB-2 the expression patterns in normal tissues are well documented, there is currently little information available about the sites of c-erhB-3 expression. In order to examine the normal tissue distribution of c-erbB-3, polyclonal antibodies were raised against eight synthetic peptides corresponding to distinct sites on the intracellular domain of c-erbB-3. Of these, three produced antibodies which reacted with a 160-kDa protein on immunoblots of human embryonal cells (293 cells) transfected with the cDNA encoding c-erbB-3, and two of the three antibodies immunoprecipitated a protein of similar size from the same cells. These antibodies were used for immunochemical staining of a wide variety of normal human adult and fetal tissues employing formalin-fixed, paraffin-embedded material. The c-erbB-3 protein was identified in cells of the gastrointestinal, reproductive, respiratory and urinary tracts as well as the skin, endocrine and nervous system in a distribution distinctly different from that observed for EGF receptor and c-erbB-2. The level of expression of the mRNA for c-erbB-3 was also examined in extracts of a selection of fetal tissues. In general the sites of mRNA and protein expression were concordant.
|Title:||EXPRESSION OF THE C-ERBB-3 PROTEIN IN NORMAL HUMAN ADULT AND FETAL TISSUES|
|Keywords:||GROWTH-FACTOR RECEPTOR, TYROSINE KINASE, ANTIBODIES, LOCALIZATION, CELLS|
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