Transcription of the AUX/IAA family of genes is rapidly induced by the plant hormone auxin. Some members of this family are longer and contain an N terminal DNA binding domain, such as Swiss:O64965. The function of this region is uncertain.

1: The Arabidopsis gene MONOPTEROS encodes a transcription factor mediating embryo axis formation and vascular development. Hardtke CS, Berleth T; EMBO J 1998;17:1405-1411. PMID:9482737