Claim: The recent updates of the UCbase include new annotation based on the hg19 human genome; it does not provide microRNAs (a small single-stranded non-coding RNA molecule) information anymore, focusing only on UCRs.
Evidence: Recent updates include new annotation based on hg19 Human genome, information about disorders related to the chromosome coordinates using the SNOMED CT classification, a query tool to search for SNPs, and a new text box to directly interrogate the database using a MySQL interface. UCbase 2.0 does not provide microRNAs (miRNAs) information anymore focusing only on UCRs. A microRNA (abbreviated miRNA) is a small non-coding RNA molecule (containing about 22 nucleotides) found in plants, animals and some viruses, that functions in RNA silencing and post-transcriptional regulation of gene expression. The miR-92 microRNAs are short single stranded non-protein coding RNA fragments initially discovered incorporated into an RNP complex with a proposed role of processing RNA molecules and further RNP assembly.