Mirnas

Some articles on mirnas, mirna:

Let-7 Micro RNA Precursor
... Let-7 miRNAs have now been predicted or experimentally confirmed in a wide range of species (MIPF000002) ... miRNAs are initially transcribed in long transcripts (up to several hundred nucleotides) called primary miRNAs (pri-miRNAs), which are processed in the nucleus by Drosha and Pasha to hairpin structures of about ~7 ... These precursors (pre-miRNAs) are exported to the cytoplasm by exportin5, where they are subsequently processed by the enzyme Dicer to a ~22 nucleotide mature miRNA ...
Mir-6 Micro RNA Precursor - Links To Further MiRNAs
... containing other non-K-box family miRNAs, including miRNAs-3 and-309, and the Brd box family gene mir-4 ...
Mir-92 Micro RNA Precursor Family - Expression Patterns
... Expression patterns of many miRNAs are timing and organ specific, especially those involved in the regulation of development ... miRNA libraries constructed from cloning and sequencing short RNAs derived from cultures of mouse embryonic stem cells have shown miR-92 to be expressed ... An miRNA that remains constant in its expression through these stages is proposed to have a role in regulating general aspects of cell physiology ...
Mir-7 Micro RNA Precursor
... This family represents the microRNA (miRNA) precursor mir-7 ... This miRNA has been predicted or experimentally confirmed in a wide range of species ... miRNAs are transcribed as ~70 nucleotide precursors (modelled here) and subsequently processed by the Dicer enzyme to give a ~22 nucleotide product ...
Mir-92 Micro RNA Precursor Family
... miRNAs are themselves matured from their long RNA precursors by ribonucleic proteins as part of a 2 step biogenesis mechanism involving RNA polymerase 2 ... Most miRNAs are grouped into clusters in the human genome or within families that share functions, expression profiles, promotors, or are incorporated into the same ribonucleic protein ... The purpose of having a variety of miRNAs in a single peace of RNA processing machinery is to act as complementary strands to the recognition elements of a ...