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. 1997 Jul 8;94(14):7583–7588. doi: 10.1073/pnas.94.14.7583

Figure 4.

Figure 4

Specific detection of MSRV-pol RNA sequence by RT-PCR in gradient-purified virion and in MS plasma. PCR products amplified from round 1 (ST1.1) with the ST1.2 primer set. From left to right: water control 1 from RT-PCR step with ST1.1 set; water control 2 amplified from water control 1 with ST1.2 nested primers; molecular weight markers; fractions 1–10 from sucrose gradient with MSRV virion; plasma samples C1 and C2 from healthy blood donors; and plasma samples MS1 and MS2 from two MS patients.