Words similar to jak
Example sentences for: jak
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The now-activated JAK2 phosphorylates STAT3, which forms homodimers, can cross the nuclear membrane and function as a transcription factor, inducing various genes including genes involved in the cellular transformation process [ 15 ] .
It has recently been suggested that G-protein coupled receptors with PDZ domains, SH2-containing domains and PTB domains participate in protein-protein interactions with partners other than G-proteins, such as Grb2 and JAK2, which may allow these receptors to bypass the G-proteins and utilize other signaling cascades (29).
STAT1, another signaling intermediate in the IL-6 pathway, has been observed to be activated in non-tumorigenic cells, and may function as a "check" for STAT3 phosphorylation, a possible oncogenic event [ 30 31 ] . We are investigating whether or not STAT1 is phosphorylated by JAK2 in NRP-152 cells, and whether STAT1 phosphorylation is required for the survival of NRP-152 cells.
Inhibition of JAK2 induced apoptosis in NRP-152 but not NRP-154 clones
The proto-oncogene TEL (Translocation, Ets, Leukemia) is a transcriptional repressor that contains a C-terminal Ets family DNA binding domain; a central domain that together with co-repressors recruit histone deacetylases [ 1 2 3 ] ; and an N-terminal SAM (sterile, alpha, motif) domain [ 4 5 6 ] , which we have recently shown forms a polymer [ 7 ] . Chromosomal translocations in a variety of leukemias result in fusion of the SAM domain of TEL to tyrosine kinase domains such as ABL, PDGFβ and JAK2 [ 8 9 10 11 12 13 14 ] or to the transcriptional activators AML1 and ARNT [ 15 16 17 ] . In the tyrosine kinase fusions, SAM domain polymerization leads to constitutive activation of the tyrosine kinase domains, which leads in turn to cell transformation [ 10 12 18 19 ] . Thus, compounds that block TEL-SAM polymerization could be effective in treating these leukemias.
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