alexa Base sequences of highly repetitive components in nuclear DNAs from rat liver and rat-ascites hepatoma.
Genetics & Molecular Biology

Genetics & Molecular Biology

Journal of Molecular and Genetic Medicine

Author(s): Ikeda Y, Nakamura K, Iwakami N, Hibino Y, Sugano N

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Abstract A 370-bp highly repetitive component in each of the nuclear DNAs from rat liver (RL) and rat-ascites hepatoma (AH) was isolated by HindIII digestion and cloned in pUC9. Ten of the resulting clones were arbitrarily selected and sequenced. Heterogeneity of size was found in 7 of the RL clones (366-369 bp), but in only 2 of the AH clones (369 bp). The sequence homology was 64.6\% among the RL clones; 80.3\% among the AH clones. The base compositions were AT-rich, ranging from 61.1\% to 64.7\%. Many A and/or T runs consisting of 2-5 bases were interspersed throughout each sequence. The restriction sites reported previously, EcoRI, HaeIII, HindIII, HinfI and HphI sites, were confirmed in almost all of the clones. In the present experiment, 12 kinds of the sites were further found in both RL and AH clones.
This article was published in Cancer Lett and referenced in Journal of Molecular and Genetic Medicine

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