Protein male-specific lethal-1; The Msl proteins are essential for elevating transcription of the single X chromosome in the male (X chromosome dosage compensation). Msl-1 is a pioneer protein. Mle, msl-1 and msl-3 are colocalized on the X chromosome. Each of the MSL proteins requires all the other MSLs for wild-type X-chromosome binding. In complex with msl-2, promotes ubiquitination of histone H2B.

E3 ubiquitin-protein ligase msl-2; The Msl proteins are essential for elevating transcription of the single X chromosome in the male (X chromosome dosage compensation). Msl-2 is required for translation and/or stability of msl-1 in males. In complex with msl-1, acts as an E3 ubiquitin ligase that promotes ubiquitination of histone H2B. Belongs to the MSL2 family.

Dosage compensation regulator; Required in males for dosage compensation of X chromosome linked genes. Mle, msl-1 and msl-3 are colocalized on X chromosome. Each of the msl proteins requires all the other msls for wild-type X- chromosome binding. Probably unwinds double-stranded DNA and RNA in a 3' to 5' direction; Belongs to the DEAD box helicase family. DEAH subfamily.

Histone-lysine N-methyltransferase Su(var)3-9; Histone methyltransferase that specifically trimethylates 'Lys-9' of histone H3 using monomethylated H3 'Lys-9' as substrate. H3 'Lys-9' trimethylation represents a specific tag for epigenetic transcriptional repression by recruiting Su(var)205/HP1 to methylated histones. Mainly functions in heterochromatin regions, thereby playing a central role in the establishment of constitutive heterochromatin at pericentric regions. Involved in heterochromatic gene silencing including the modification of position-effect-variegation. Belongs to the cl [...]

Chromator, isoform A; Chromator (Chro) encodes a chromodomain protein that is required for proper microtubule spindle formation. It is important for normal cell cycle progression, functioning as a spatial regulator of cell cycle factors.

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 [...]

Suppressor of variegation 3-7 (Su(var)3-7) encodes a protein associated with heterochromatin. Increasing the amount of the product of Su(var)3-7 triggers heterochromatin expansion and epigenetic gene silencing.

RINT1-like protein; During cytokinesis in male meiotic cells, required for completion of cleavage furrow ingression possibly in conjunction with Zw10. Required for maintenance of Golgi stack number and morphology. Essential for acroblast assembly.

Cyclic AMP response element-binding protein B; Isoform E is a PKA-dependent transcriptional activator. Isoform J is a direct antagonist of activation by isoform E in cell culture. Binds the cAMP response element (CRE) (consensus: 5'- GTGACGT[AC][AG]-3'), a sequence present in many viral and cellular promoters. Has a role in long-term memory ; Belongs to the bZIP family. ATF subfamily.