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mof | Males-absent on the first protein; Histone acetyltransferase that plays a direct role in the specific histone acetylation associated with dosage compensation as part of the MSL complex. Dosage compensation insures that males with a single X chromosome have the same amount of most X-linked gene products as females with two X chromosomes. May be directly involved in the acetylation of histone 4 at 'Lys-16' on the X chromosome of males where it is recruited by the MSL complex. As part of the NSL complex may associate with promoters of X chromosomal as well as autosomal genes and positivel [...] (827 aa) | ||||
pho | Polycomb protein PHO; Polycomb group (PcG) protein that binds to the 5'- CNGCCATNNNNG-3' sequence found in the regulatory regions of many genes. PcG proteins act by forming multiprotein complexes, which are required to maintain the transcriptionally repressive state of homeotic genes throughout development. PcG proteins are not required to initiate repression, but to maintain it during later stages of development. They probably act via the methylation of histones, rendering chromatin heritably changed in its expressibility. Probably targets the Esc/E(z) complex to DNA. Necessary but no [...] (520 aa) |