ECB-ART-30508
Experientia
1978 Jul 15;347:846-8. doi: 10.1007/bf01939657.
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Satellite DNA (II) from sea urchin (Lytechinus variegatus) sperm.
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When DNA isolated from freshly collected sperm of sea urchin (Lytechinus variegatus) is centrifuged to equilibrium in CsCl, 2 heavy satellite bands appear beside the main band DNA. Satellite DNA (II) appears in between the main band DNA (rho = 1.695 g/cm3) and the rDNA satellite (rho = 1.722 g/cm3). Satellite DNA (II) has a buoyant density 1.710 g/cm3, corresponding to 50% GC content. It is speculated that the satellite DNA (II), which appears to be of high mol. wt, might contain the sequences complementary to histone mRNA.
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Genes referenced: LOC100887844 LOC100893746
References [+] :
Birnstiel,
The ribosomal RNA cistrons.
1971, Pubmed