Fig 1.

Restriction digest analysis of JMRV DNA. A 2.5-μg portion of purified viral genomic DNA was digested overnight with HindIII or BamHI and run on a 0.7% agarose gel. The patterns obtained for both digestions correlate with the predicted fragment sizes for the JMRV genomic sequence, as listed in Table 1. L1 and L2 represent DNA ladders run as size standards.