mir-30 microRNA precursor
| mir-30 microRNA precursor | |
|---|---|
| 220px | |
| Predicted secondary structure and sequence conservation of mir-30 | |
| Identifiers | |
| Symbol | mir-30 |
| Rfam | RF00131 |
| miRBase | MI0000088 |
| miRBase family | MIPF0000005 |
| Other data | |
| RNA type | Gene; miRNA |
| Domain(s) | Eukaryota |
| GO | 0035068 0035195 |
| SO | 0001244 |
miR-30 microRNA precursor is a small non-coding RNA that regulates gene expression. Animal microRNAs are transcribed as pri-miRNA (primary miRNA) of varying length which in turns are processed in the nucleus by Drosha into ~70 nucleotide stem-loop precursor called pre-miRNA (preliminary miRNA) and subsequently processed by the Dicer enzyme to give a mature ~22 nucleotide product. In this case the mature sequence comes from both the 3' (miR-30)[1] and 5' (mir-97-6)[2] arms of the precursor. The products are thought to have regulatory roles through complementarity to mRNA.[3]
A screen of 17 miRNAs that have been predicted to regulate a number of breast cancer associated genes found variations in the microRNAs miR-17 and miR-30c-1, these patients were noncarriers of BRCA1 or BRCA2 mutations, lending the possibility that familial breast cancer may be caused by variation in these miRNAs.[4]
Members of the miR-30 family have been found to be highly expressed in heart cells.[5]
Targets of miR-30
It has been shown that the integrin ITGB3 and the ubiquitin conjugating E2 enzyme UBC9 are downregulated by miR-30.[6] It has also been suggested that the TP53 protein may be a target of miR-30c and miR-30e. An immunoblot analysis revealed that p53 expression levels were elevated upon knockdown of miR-30c and miR-30e.[7]
References
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External links
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