Fig. 6.
gSOCS3 binds with JAK1 and JAK2 to negatively regulate the activation of STAT1/3/5. A Binding assays of gSOCS3 with JAK1/2 in macrophages transfected with GV314-SOCS3 adenovirus for 72 h. Immunoprecipitation using anti-Flag antibody and detection of the components of the Flag(SOCS3)-associated complexes with anti-JAK1 or -JAK2 antibody. B, C Addition of 100 μmol/L JAK1/2 inhibitor AG490 decreases the levels of pSTAT1/3/5 in the context of stimulation with the cytokine GM-CSF or IFN-γ.
