Methylation of satellite DNA.
The lower amount of 5 methylcytosine in DNA from bull sperm relative to DNA of other bovine tissues is a result of the absence of this minor base from several of the satellite DNAs in sperm. This applies particularly to the 1.715, 1.711b and 1.709 satellites and less so to the 1.706 and 1.711a satellites. Mouse sperm DNA is also partially undermethylated.
D000818:Animals; D002417:Cattle; D055598:Chemical Phenomena; D002621:Chemistry; D004276:DNA, Satellite / Q000302:isolation & purification*; D008297:Male; D008745:Methylation; D051379:Mice; D013045:Species Specificity; D013094:Spermatozoa / Q000378:metabolism*
D004276:DNA, Satellite