Article
A Mutation in the SH2 domain of STAT2 prolongs tyrosine phosphorylation of STAT1 and promotes type I IFN-induced apoptosis.
Molecular biology of the cell - 1 Jul 2007
Scarzello Anthony J, Romero-Weaver Ana L, Maher Stephen G, Veenstra Timothy D, Zhou Ming, Qin Angel, Donnelly Raymond P, Sheikh Faruk, Gamero Ana M
Abstract excerpt
Type I interferons (IFN-alpha/beta) induce apoptosis in certain tumor cell lines but not others. Here we describe a mutation in STAT2 that confers an apoptotic effect in tumor cells in response to type I IFNs. This mutation was introduced in a conserved motif, PYTK, located in the STAT SH2 domain, which is shared by STAT1, STAT2, and STAT3. To test whether the tyrosine in this motif might be phosphorylated and...
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