Histone occurrence in chromatin from Peridinium balticum, a binucleate dinoflagellate

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Science  23 Dec 1977:
Vol. 198, Issue 4323, pp. 1258-1260
DOI: 10.1126/science.563104


Peridinium balticum is one of two dinoflagellates known to have dissimilar nuclei together in the same cell. One nucleus (dinokaryotic) has permanently condensed chromosomes, while the other (eukaryotic) does not have morphologically distinct chromosomes. Acid extracts of chromatin prepared from a mixture of dinokaryotic and eukaryotic nuclei and purified eukaryotic nuclei give four bands that co-migrate with four of the five histones from calf thymus when analyzed in urea-containing polyacrylamide gels.

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