PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15988755-9 2005 Furthermore, the simultaneous activation of both CDJAK1 and CDJAK2 fusion proteins, but not either one alone, led to the tyrosine phosphorylation of the IL-3 receptor beta subunit, the activation of downstream signaling molecules, including STAT5, Akt, and MAPK, and the conferring of factor-independent growth to IL-3-dependent Ba/F3 cells. Tyrosine 121-129 signal transducer and activator of transcription 5A Mus musculus 241-246