What is a miR?
['As novel molecules, microRNAs (miRs) take part in regulating protein-coding gene expression at the post-transcriptional level,', 'The discovery of microRNA (miRNA) regulation in tumorigenesis ', "MiRs are small (~23 nt) noncoding RNAs that regulate gene expression by specifically interacting with the 3' untranslated region (UTR) of target gene mRNA to repress translation or enhance mRNA cleavage. ", 'The discovery of microRNAs (miRNAs) has opened an entire new avenue for drug development. These short (15-22 nucleotides) noncoding RNAs, which function in RNA silencing and posttranscriptional regulation of gene expression, have been shown to critically affect numerous pathways in both development and disease progression. ']
['The discovery of microRNAs (miRNAs) has opened an entire new avenue for drug development. These short (15-22 nucleotides) noncoding RNAs, which function in RNA silencing and posttranscriptional regulation of gene expression, have been shown to critically affect numerous pathways in both development and disease progression.']
['MiRs are small (~23 nt) noncoding RNAs']