| Literature DB >> 2094801 |
V Stefanovsky1, S Dimitrov, V Russanova, I Pashev.
Abstract
The presence of histones H1 and H4 at the sites of actual DNA synthesis has been studied with Ehrlich ascites tumour cells, pulse labeled for different times with 3H-thymidine and then treated with formaldehyde to crosslink histones to DNA. The fixed chromatin fragments were sonicated to reduce the size of DNA, purified in a CsCl gradient and immunoprecipitated with antibodies to histones H1 and H4. Determination of specific radioactivity in precipitated probes showed that both histones have been associated with nascent DNA even upon 1 min pulse with 3H-thymidine, thus indicating their presence near the replication fork.Entities:
Mesh:
Substances:
Year: 1990 PMID: 2094801 DOI: 10.1007/bf00429890
Source DB: PubMed Journal: Mol Biol Rep ISSN: 0301-4851 Impact factor: 2.316