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  • Title: DNA repair in the c-myc locus.
    Author: Beecham EJ, Mushinski JF, Shacter E, Potter M, Bohr VA.
    Journal: Curr Top Microbiol Immunol; 1990; 166():285-91. PubMed ID: 2073808.
    Abstract:
    We have studied DNA repair after UV damage in the murine c-myc locus. It appears that a region in B cells upstream of the murine c-myc gene is repaired with a different efficiency in plasmacytoma-resistant DBA/2N mice than in plasmacytoma-susceptible BALB/cAn mice. The region just upstream of c-myc is inefficiently repaired in B lymphoblasts derived from BALB/cAn mice. In contrast, this same region of c-myc is efficiently repaired in B lymphoblasts derived from DBA/2N mice. DNA fragments located in the coding region of c-myc and in another gene, dihydrofolate reductase (DHFR), are repaired with equal efficiency in cells from these two strains of mice. It is possible that repair efficiency of the 5' flank of c-myc may be involved in tumor susceptibility of the mouse strain.
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