A single autophosphorylation site confers oncogenicity to the Neu/ErbB-2 receptor and enables coupling to the MAP kinase pathway.

作者: R. Ben-Levy , H.F. Paterson , C.J. Marshall , Y. Yarden

DOI: 10.1002/J.1460-2075.1994.TB06632.X

关键词:

摘要: The transforming potential of the Neu/ErbB-2 receptor tyrosine kinase undergoes inactivation by deletion non-catalytic C-terminal tail, which contains five autophosphorylation sites. To determine site is essential for oncogenicity, we tailed C-terminally-deleted mutant with individual Complete restoration action in vitro and vivo was conferred a stretch 12 amino acids that contained most (Y1253). Reconstitution transformation specific to this acid sequence because none other sites, when grafted individually, caused transformation, replacement phenylalanine residue significantly reduced oncogenic both full-length proteins. When present alone enabled coupling biochemical pathway includes Ras, MAP transactivation Jun. These results indicate multiplicity sites on not transformability, implicate transduction signal Neu/ErbB-2.

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