An ancient RNase H1 splice junction mutant preserved in a 19-million-year-old genetic fossil in ape genomes.

Abstract excerpt

A retroprocessed pseudogene (retropseudogene) descended from the gene encoding ribonuclease (RNase) H1 has been found in ape genomes that preserves a splice junction mutation event that altered the carboxyl-terminal end of the enzyme. The GT --> GC transition mutant at the 5' splice junction of RNase H1 exon 7/intron 7 led to the absence of exon 8 and more than 1 kb of intron 7 sequence being substituted....

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