| Literature DB >> 736891 |
Abstract
Two different methods were used to isolate high-molecular-weight heavy satellite DNA from the spermatozoa of the sea-urchin Lytechinus variegratus. Purification of satellite rDNA (ribosomal DNA) by selective denaturation of the spermatozoal DNA followed by a separation of the native and denatured DNA in an aqueous mixture of poly(ethylene glycol)/dextran is affected by the molecular weight of the spermatozoal DNA. Enrichment of satellite rDNA by selective precipitation of main-band DNA by poly-L-lysine is cumbersome but more suitable.Entities:
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Year: 1978 PMID: 736891 PMCID: PMC1186035 DOI: 10.1042/bj1750015
Source DB: PubMed Journal: Biochem J ISSN: 0264-6021 Impact factor: 3.857