Words similar to stem-loop

Example sentences for: stem-loop

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Conversely, we consider classes 4-6 to have a low probability of reflecting a genuine miRNA in Drosophila , regardless of how 'impressive' the helical nature of the conserved stem-loop is.
Processing of pri-miRNA into the pre-miRNA stem-loop occurs in the nucleus, while subsequent processing of pre-miRNA into 21-22 mers is a cytoplasmic event mediated by the RNAse III enzyme Dicer [ 17 18 19 20 ] ; Dicer is also responsible for cleavage of long perfectly double-stranded RNA into 21-22 nucleotide fragments during RNA interference (RNAi) [ 2 21 ] . These latter molecules, known as silencing RNA (siRNA), bind to and trigger the degradation of perfectly homologous mRNA molecules via RISC, a double-strand RNA-induced silencing complex containing nuclease activity [ 22 23 ] .
Because the ∈ RNA stem-loop induces a structural change in P that is required for DHBV DNA polymerase activity [ 27, 28], we examined the possibility that ∈ may activate the RNAseH activity in micrococcal nuclease treated cores.
Since the stem-loop structure of the template is less likely to form at low KCl, this low concentration could also contribute to the increase of S/N.
Indeed, we tested one class 4 and seven class 5 candidates by northern blot and failed to observe expression for any of them, despite extensive, conserved stem-loop structure (data not shown).