Abstract:We report here a new type of peculiar repetitive sequence, A15T(TC)9T12, which was detected at 750 base pairs (bp) upstream of a rat calmodulin processed pseudogene by DNA sequencing of cloned DNA fragments. This sequence element could possibly form a cruciform structure with a 12‐AT‐pair stem, exposing (CT)9 sequences as a loop. S1 nuclease protection experiments failed to identify this element as a cruciform structure but instead detected an alternating purine pyrimidine tract at 50 bp downstream of this ele… Show more
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