DEMONSTRATION OF A NEW MOUSE MAMMARY-TUMOR VIRUS LOCUS IN THE GENOME OF THE MAMMARY-TUMOR PRONE STRAIN SHN MOUSE

被引:4
作者
KOIZUMI, A
TSUKADA, M
WADA, Y
KAMIYAMA, S
机构
[1] Department of Hygiene, Akita University School of Medicine, Akita
关键词
D O I
10.1016/0006-291X(90)91950-W
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Until this report, there have been no detailed analyses of the mouse mammary tumor virus (MMTV) loci in the mammary tumor prone strain SHN. Using a probe, which hybridizes to the env sequence of MMTV, Southern blotting of genomic DNA from the brain after digestion with EcoRI revealed 5 endogenous proviruses: Mtv-1 (4.5kb), Mtv-2 (11kb), Mtv-8 (6.7kb), Mtv-17 (8.3kb) and a newly-found 6.5-kb fragment. Fl-hybrid mice ( C3H He female × SHN male) also possessed the 6.5-kb fragment. Thus, we conclude that the 6.5-kb fragment is unique to SHN mice. Genomic DNA from mammary tumors of SHN mice showed MMTV insertions, suggesting that activation of an oncogene(s) occurred in this strain. © 1990.
引用
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页码:336 / 341
页数:6
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