The MEINOX region is comprised of two domains, KNOX1 and KNOX2. KNOX1 plays a role in suppressing target gene expression. KNOX2, essential for function, is thought to be necessary for homo-dimerisation [1].

1: Functional analysis of the conserved domains of a rice KNOX homeodomain protein, OSH15. Nagasaki H, Sakamoto T, Sato Y, Matsuoka M; Plant Cell 2001;13:2085-2098. PMID:11549765