Abstract
Analysis of the nucleotide sequence of minute virus of mice (MVM) DNA indicates that the DNA termini contain clusters of potential DNA regulatory elements and that there are repetitive DNA elements highly reiterated throughout the entire genome, which may also have a role in DNA function. The left end of MVM DNA, which contains the promoter for the nonstructural genes, has a cluster of DNA elements that includes homologies to the polyoma virus enhancer, three copies of an E1A-inducible transcription factor (ATF) binding site, and a potential Z-DNA element. The MVM right end, which contains the origin of DNA replication, has a cluster of DNA elements that includes several homologies to the polyoma virus replication origin and a potential Z-DNA element. In addition, oligonucleotide frequency analysis indicates the presence of highly recurring sequence elements throughout the entire MVM genome that may be involved in regulation. This computer-aided analysis suggests similarities and significant differences in regulatory sequence organization between MVM and polyoma virus, and identifies specific DNA elements for future genetic characterization.
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