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Alignment of the nucleotide sequences of cloned ovPAG gene fragments. Sheep genomic DNA was amplified with a pair of primers (data not shown) that were identical to ovPAG1 DNA sequences in exon 3 and exon 4. Amplified gene fragments were cloned, sequenced, and aligned. The boxed areas show intron 3 flanked by exons 3 and 4. Gaps (-) were introduced to give optimal alignments. Completely conserved nucleotides are shown as dots below the consensus sequence (top).
