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ABSTRACT CRISPR-Cas systems provide prokaryotes with RNA-based adaptive immunity against viruses and plasmids. A unique feature… Expand CRISPR-Cas endonucleases directed against foreign nucleic acids mediate prokaryotic adaptive immunity and have been tailored for… Expand Background Cellular RNA metabolism has a broad range of functional aspects in cell growth and division, but its role in… Expand The rapid degradation of ribonucleic acids (RNA) by ubiquitous ribonucleases limits the efficacy of new therapies based on RNA… Expand RNA silencing phenomena, known as post‐transcriptional gene silencing in plants, quelling in fungi, and RNA interference (RNAi… Expand Protein B23 is an abundant nucleolar protein and putative ribosome assembly factor. The protein was analyzed for ribonuclease… Expand S proteins, pistil-specific ribonucleases that cosegregate with S alleles, have previously been shown to control rejection of… Expand Three S-allele-associated proteins (S-proteins) of Petunia inflata, a species with gametophytic self-incompatibility, were… Expand Nuclei isolated from embryos of wheat (var. Yamhill) incorporated [(3)H]UTP into a trichloroacetic acid-insoluble product… Expand Dibasic amino acids and polyamines added to oat (Avena sativa L.) leaf protoplast isolation media decrease the RNase activity of… Expand