| Modification Notes |
Atrophin-2 (Arginine-glutamic acid dipeptide repeats protein, Atrophin-1-like protein) is a 1,566 amino acid protein encoded by the human gene RERE. Atrophin-2 is a member of the atrophin family of arginine-glutamic acid (RE) dipeptide repeat-containing proteins and contains one BAH domain, one ELM2 domain, one GATA-type zinc finger and one SANT domain. Atrophin-2 plays a role as a transcriptional repressor during development and later may play a role in cell survival. Overexpression of atrophin-2 recruits Bax to the nucleus, particularly to the promyelocytic leukemia (PML) nuclear body, also known as the PML oncogenic domain (POD), and triggers caspase-3 activation, leading to cell death. Atrophin-2 also interacts with HDAC1 and atrophin-1. Its interaction with atrophin-1 is improved when the poly-Gln region of atrophin-1 is extended. |