Comparison of sequences obtained from sucrose gradient fractionated platelet lysates. (A) Nucleotide sequences from RT-PCR from sucrose fractions 16 and 18 from patient UPN08. Six clones were sequenced and compared with HERV-K10.47 “−” indicates identity. P1 represents primer LPQ, and P2 represents primer YIDD. (B) Deduced amino acid sequences for the sequences shown in (A). “*” indicates an ochre stop codon.