Autonomous replicating sequences from mouse cells which can replicate in mouse cells in vivo and in vitro.
Open Access
- 1 January 1987
- journal article
- research article
- Published by Taylor & Francis in Molecular and Cellular Biology
- Vol. 7 (1), 1-6
- https://doi.org/10.1128/mcb.7.1.1
Abstract
We have already reported that the cloned mouse DNA fragment (pMU65) could replicate in a simian virus 40 T antigen-dependent system in vivo and in vitro (H. Ariga, Z. Tsuchihashi, M. Naruto, and M. Yamada, Mol. Cell. Biol. 5:563-568, 1985). The plasmid p65-tk, containing the thymidine kinase (tk) gene of herpes simplex virus and the BglII-EcoRI region of pMU65 homologous to the simian virus 40 origin of DNA replication, was constructed. The p65-tk persisted episomally in tk+ transformants after the transfection of p65-tk into mouse FM3Atk- cells. The copy numbers of p65-tk in FM3Atk+ cells were 100 to 200 copies per cell. Furthermore, the p65-tk replicated semiconservatively, and the initiation of DNA replication started from the mouse DNA sequences when the replicating activity of p65-tk was tested in the in vitro DNA replication system developed from the FM3A cells. These results show that a 2.5-kilobase fragment of mouse DNA contains the autonomously replicating sequences.This publication has 26 references indexed in Scilit:
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