The 3'-terminal sequence of mitochondrial 13S ribosomal RNA

We have examined the 3'-terminal sequence of the "small" structural ribosomal RNA ("13S") of hamster cell mitochondria, using a procedure involving [3H]isoniazide labeling of samples subjected to sequential periodate oxidation and beta-elimination. The terminus was found to be PyUAUUAOH, which is similar, but not identical, to the corresponding terminus of eukaryotic cytoplasmic 18S rRNA.