Abstract
There are at least six small stable RNAs inMycoplasma capricolum cells besides tRNAs and rRNAs. One of them, MCS5 RNA, is a homolog of RNase P RNA. The predicted secondary structure of this RNA is essentially the same as that of other eubacterial RNase P RNAs. MCS5 RNA is more similar to the RNase P RNA ofB. subtilis than to that ofE. coli. This is consistent with previous conclusions that mycoplasmas are phylogenetically related to the low G+C Gram-positive bacterial group. The major substrates for MCS5 RNA must be the precursors of tRNAs. The precursor of MCS6 RNA, which is a homolog of theE. coli 10Sa RNA, may also be a substrate for the MCS5 RNA because this RNA has a tRNA-like structure at its 5′ and 3′ ends.
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Ushida, C., Izawa, D. & Muto, A. RNase P RNA ofMycoplasma capricolum . Mol Biol Rep 22, 125–129 (1995). https://doi.org/10.1007/BF00988716
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DOI: https://doi.org/10.1007/BF00988716