TAL1 (Acetyl-K221/K222) polyclonal antibody

Activation of TAL1 characterizes up to 60% ofcases of human T cell acute lymph oblastic leukemia,making it themost frequent gain-of-function mutation observed in this disorder. TAL1 (also designated SCL) is a serine phospho protein and basic helixx-loop-helixtranscription factorknown to regulate embryonic hematopoiesis. This transcription factor binds as a heterodimer with E2A and HEB/HTF4 to a nucleotide sequence motif termed the E-box.In addition, leukemogenesisis accelerated dramatically bytransgenic coexpression of TAL1 and the catalyticsubunit ofcasein kinase IIα, a serine/threonine protein kinase known tomodulate the activity of other βHLH transcription factors.