Identifiers
NAME:TGFBR1:TGFBR2
References
su_mpk1_mpk1_re129( Survival ):
Activated TGFBR1/TGFBR2 complex attracts the TAB2/TAB3 proteins which promote activation of TAK1 (by phosphorylation).
TAB1 is an essential cofactor required for activation of TAK1 by upstream stimuli.
PMID:20060931 PMID:11274345
su_mpk1_mpk1_re251( Survival ):
TGF-?? exerts its biological effects by binding to a cell surface receptor complex composed of type I (TbRI) and type II (TbRII) receptor serine/threonine kinases. Upon ligand binding TbRII phosphorylates and activates TbRI which subsequently phosphorylates the cytoplasmic Smad2 and Smad3 proteins. Phosphorylated Smad proteins form stable complexes with a common partner Smad4. The activated Smad2/4 and Smad3/4 complexes translocate into the nucleus where the Smad oligomers induce transcriptional activation (or inhibition) of specific target genes.
PMID:21614932