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The miRBase registry provides a centralised system for assigning new names to microRNA genes. [6] miRBase grew from the microRNA registry resource set up by Sam Griffiths-Jones in 2003. [7] According to Ana Kozomara and Sam Griffiths-Jones miRBase has five aims: [1] To provide a consistent naming system for microRNAs
miRBase: the microRNA database; PolymiRTS: a database of DNA variations in putative microRNA target sites; PolyQ: database of polyglutamine repeats in disease and non-disease associated proteins; Rfam: a database of RNA families; IRESbase: A comprehensive database of experimentally validated internal ribosome entry sites. [14]
This microRNA database and microRNA targets databases is a compilation of databases and web portals and servers used for microRNAs and their targets. MicroRNAs (miRNAs) represent an important class of small non-coding RNAs (ncRNAs) that regulate gene expression by targeting messenger RNAs.
This template links to mirbase. This external link template is underused, compared to the number of links to the resource it represents. Please help convert those links to make use of this template, for ease of tracking, and ease of interoperability with Wikidata .
Many mammalian genomes encode four closely related miR-29 precursors that are transcribed in two transcriptional units. For example, human miR-29a and miR-29b-1 are processed from an intron of a long non-coding transcript pri-miRNA (lnc-pri-miRNA) LOC646329 from chromosome 7. miR-29b-2 (identical in sequence to miR-29b-1) and miR-29c are co-transcribed from chromosome 1.
miRBase is considered to be the gold-standard miRNA database—it stores miRNA sequences detected by thousand of experiments. In this database each miRNA is associated with a miRNA precursor and with one or two mature miRNA (-5p and -3p). In the past it had always been said that the same miRNA precursor generates the same miRNA sequences.
The presence of miR-10 has been detected in a diverse range of bilaterian animals. It is one of the most widely distributed microRNAs in animals, it has been identified in numerous species including human, dog, cat, horse, cow, guinea pig, mouse, rat, common marmoset (Callithrix jacchus), common chimpanzee (Pan troglodytes), rhesus monkey (Macaca mulatta), Sumatran orangutan (Pongo abelii ...
miR-33 is a family of microRNA precursors, which are processed by the Dicer enzyme to give mature microRNAs. [1] miR-33 is found in several animal species, including humans.In some species there is a single member of this family which gives the mature product mir-33.