The plant mir-166 microRNA precursor is a small
non-coding RNA gene. This microRNA (miRNA) has now been predicted or experimentally confirmed in a wide range of plant species.
microRNAs are transcribed as ~70
nucleotide
Nucleotides are Organic compound, organic molecules composed of a nitrogenous base, a pentose sugar and a phosphate. They serve as monomeric units of the nucleic acid polymers – deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), both o ...
precursors and subsequently processed by the
Dicer enzyme to give a ~22 nucleotide product. In this case the mature sequence comes from the 3' arm of the precursor, and both ''
Arabidopsis thaliana'' and rice genomes contain a number of related miRNA precursors which give rise to almost identical mature sequences.
The mature products are thought to have regulatory roles through complementarity to
messenger RNA.
References
External links
*
MIPF0000004
MicroRNA
{{molecular-cell-biology-stub