Stem-loop sequence xtr-mir-1a-2

DescriptionXenopus tropicalis miR-1a-2 stem-loop
Gene family MIPF0000038; mir-1
Community annotation

This text is a summary paragraph taken from the Wikipedia entry entitled mir-1_microRNA_precursor_family. miRBase and Rfam are facilitating community annotation of microRNA families and entries in Wikipedia. Read more ...

The miR-1 microRNA precursor is a small micro RNA that regulates its target protein's expression in the cell. microRNAs are transcribed as ~70 nucleotide precursors and subsequently processed by the Dicer enzyme to give a ~22 nucleotide products. In this case the mature sequence comes from the 3' arm of the precursor. The mature products are thought to have regulatory roles through complementarity to mRNA. In humans there are two distinct microRNAs that share an identical mature sequence, these are called miR-1-1 and miR-1-2. These micro RNAs have pivotal roles in development and physiology of muscle tissues including the heart. MiR-1 is known to be involved in important role in heart diseases such as hypertrophy, myocardial infarction, and arrhythmias. Studies have shown that MiR-1 is an important regulator of heart adaption after ischemia or ischaemic stress and it is upregulated in the remote myocardium of patients with myocardial infarction. Also MiR-1 is downregulated in myocardial infarcted tissue compared to healthy heart tissue. Plasma levels of MiR-1 can be used as a sensitive biomarker for myocardial infarction.

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   u    g                g      ----   a 
5'  ggga acauacuucuuuauau uccaua    ugg a
    |||| |||||||||||||||| ||||||    ||| g
3'  cucu uguaugaagaaaugua agguau    acc u
   -    a                -      cgua   g 
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Genome context
Coordinates (JGI4.2) Overlapping transcripts
GL173652.1: 56426-56496 [+]

Mature sequence xtr-miR-1a

Accession MIMAT0003551

47 - 


 - 67

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Evidence experimental; Northern [1]
Predicted targets