RET alternate splicing influences the interaction of activated RET with the SH2 and PTB domains of Shc, and the SH2 domain of Grb2
MJ Lorenzo, GD Gish, C Houghton, TJ Stonehouse… - Oncogene, 1997 - nature.com
MJ Lorenzo, GD Gish, C Houghton, TJ Stonehouse, T Pawson, BAJ Ponder, DP Smith
Oncogene, 1997•nature.comActivating germline mutations of the RET receptor tyrosine kinase are found in the majority of
cases of inherited cancer syndrome MEN 2, and inactivating mutations in some cases of
dominantly inherited Hirschsprung disease. Using RET activated by a MEN 2 mutation, we
show that both the SH2 and PTB domains of the adaptor protein Shc interact with RET, and
we identify the PTB domain interaction site. Interaction with both the SH2 and PTB domains
of Shc contributes to the transcriptional activation of a serum response element. RET …
cases of inherited cancer syndrome MEN 2, and inactivating mutations in some cases of
dominantly inherited Hirschsprung disease. Using RET activated by a MEN 2 mutation, we
show that both the SH2 and PTB domains of the adaptor protein Shc interact with RET, and
we identify the PTB domain interaction site. Interaction with both the SH2 and PTB domains
of Shc contributes to the transcriptional activation of a serum response element. RET …
Abstract
Activating germline mutations of the RET receptor tyrosine kinase are found in the majority of cases of inherited cancer syndrome MEN 2, and inactivating mutations in some cases of dominantly inherited Hirschsprung disease. Using RET activated by a MEN 2 mutation, we show that both the SH2 and PTB domains of the adaptor protein Shc interact with RET, and we identify the PTB domain interaction site. Interaction with both the SH2 and PTB domains of Shc contributes to the transcriptional activation of a serum response element. RET alternate splicing affects the strength of interaction with both the Shc SH2 and PTB domains. In addition, a splice isoform-specific HSCR missense mutation, which does not inactivate the RET kinase activity, decreases the strength of the PTB domain interaction and the level of RET-dependent Shc phosphorylation.
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