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  1. Tästä+hieman+valoa+histonitietokannan+käsittämättömään+monimutkaisuuteen.https://www.the-scientist.com/uncategorized/the-nucleosome-untangled-47599"Constant+additions+to+the+cast+of+histone+marks+(see+image+below),+and+the+regulatory+proteins+that+make+them,+remove+them,+or+act+upon+their+presence,+put+the+number+of+potential+combinations+in+the+astronomical+range.+Say+there+were+30+different+residues+marked+in+a+given+nucleosome,+230+gives+a+billion+possible+combinations.+A+human+cell+has+approximately+only+40+million+incorporated+nucleosomes."