c-Jun Antibody (YA503),MedChemexpress,HY-P80084

c-Jun is a transcription factor that recognizes and binds to the AP-1 consensus motif 5'-TGA[GC]TCA-3'. It heterodimerizes with FOS family proteins to form the AP-1 transcription complex, enhancing both DNA binding and transcriptional activity (by similarity). Together with FOSB, it participates in activation-induced cell death of T cells by binding to the AP-1 promoter site of FASLG/CD95L and inducing its transcription upon TCR/CD3 signaling pathway activation. When phosphorylated by HIPK3, c-Jun promotes NR5A1 activity, boosting steroidogenic gene expression in response to cAMP pathway stimulation. In colorectal cancer (CRC) cells, it mediates KRAS-activated transcriptional upregulation of USP28 and directly binds to the USP28 promoter. During Epstein-Barr virus (EBV) infection, c-Jun binds to the viral BZLF1 Z promoter to activate BZLF1 expression.