Description
Description: Recombinant human SETDB1 (KMT1E) (715-end) was expressed by Baculovirus in Sf9 insect cells using an N-terminal GST tag.
Scientific Background: Histone-lysine N-methyltransferase SETDB1 (SETD6) specifically trimethylates 'Lys-9' of histone H3 and plays a central role in the silencing of euchromatic genes. SETDB1 is targeted to histone H3 by TRIM28/TIF1B, a factor recruited by KRAB zinc-finger proteins. Required for activated KRAS-mediated promoter hypermethylation and transcriptional silencing of tumor suppressor genes (TSGs) or other tumor-related genes in colorectal cancer (CRC) cells by forming a corepressor complex. It was also found to be responsible for transcriptionally repressive state of genes in embryonic stem cells (ESCs)