STAT1, STAT2, STAT3, STAT5 and STAT6 have been shown to be acetylated.[10] STAT1 may have an acetyl group attached to lysines at positions 410 and 413, and as a result, STAT1 can promote the transcription of apoptotic genes - triggering cell death.[10] STAT2 acetylation is important for interactions with other STATs, and for the transcription of anti-viral genes.[4]