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trx | Histone-lysine N-methyltransferase trithorax; Histone methyltransferase that trimethylates 'Lys-9' of histone H3 (H3K9me3). H3 'Lys-9' methylation represents a specific tag for epigenetic transcriptional activation. Functions in segment determination through interaction with genes of bithorax (BX-C) and antennapedia (ANT-C) complexes. Acts as an activator of BX-C. Involved in the very early regulation of homeotic genes expressed only in the posterior region of the embryo. (3726 aa) | ||||
mr | Morula (mr) encodes the APC2 subunit of the anaphase promoting complex (APC). mr strong alleles produce lethality, metaphase arrest and neuroblast polyploidy. mr weak alleles result in female sterility, affecting the endocycle in the nurse cells, as well as metaphase arrest in early embryonic mitoses; Belongs to the cullin family. (802 aa) |