MIR20B - microRNA 20b Gene
Also Known as MIRN20B; mir-20b; hsa-mir-20b
Species: Homo sapiens
About MIR20B
This gene has 1 transcript (splice variant), 45 orthologues and 4 paralogues.
Summary
MicroRNAs (miRNAs) are short (20-24 nt) non-coding RNAs that are involved in post-transcriptional regulation of gene expression in multicellular organisms by affecting both the stability and translation of mRNAs. miRNAs are transcribed by RNA polymerase II as part of capped and polyadenylated primary transcripts (pri-miRNAs) that can be either protein-coding or non-coding. The primary transcript is cleaved by the Drosha ribonuclease III enzyme to produce an approximately 70-nt stem-loop precursor miRNA (pre-miRNA), which is further cleaved by the cytoplasmic Dicer ribonuclease to generate the mature miRNA and antisense miRNA star (miRNA*) products. The mature miRNA is incorporated into a RNA-induced silencing complex (RISC), which recognizes target mRNAs through imperfect base pairing with the miRNA and most commonly results in translational inhibition or destabilization of the target mRNA. The RefSeq represents the predicted MicroRNA stem-loop. [provided by RefSeq, Sep 2009]
| Molecular Function GO Annotation | Evidence | References | Source |
|---|---|---|---|
| enables mRNA 3'-UTR binding |
IDA
IDA: Inferred from direct assay
|
21042576 | GOA |
| enables mRNA base-pairing translational repressor activity |
IDA
IDA: Inferred from direct assay
|
17205120 | GOA |
| Biological Process GO Annotation | Evidence | References | Source |
|---|---|---|---|
| involved in cellular response to tumor necrosis factor |
IDA
IDA: Inferred from direct assay
|
28595801 | GOA |
| involved in miRNA-mediated gene silencing by mRNA destabilization |
IDA
IDA: Inferred from direct assay
|
32336590 | GOA |
| involved in miRNA-mediated post-transcriptional gene silencing |
IDA
IDA: Inferred from direct assay
|
17205120 | GOA |
| involved in negative regulation of angiogenesis |
IDA
IDA: Inferred from direct assay
|
24048733 | GOA |
| involved in negative regulation of vascular endothelial cell proliferation |
IMP
IMP: Inferred from mutant phenotype
|
28595801 | GOA |
| involved in positive regulation of cellular senescence |
IMP
IMP: Inferred from mutant phenotype
|
28595801 | GOA |
| acts upstream of positive regulation of gene expression |
IMP
IMP: Inferred from mutant phenotype
|
21042576 | GOA |
| acts upstream of positive regulation of osteoblast differentiation |
IDA
IDA: Inferred from direct assay
|
21042576 | GOA |
| Cellular Component GO Annotation | Evidence | References | Source |
|---|---|---|---|
| located in extracellular space |
IDA
IDA: Inferred from direct assay
|
26646931 | GOA |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| T-Cell Acute Lymphoblastic Leukemia |
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| Multiple Sclerosis |
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| Kidney Cancer |
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| Schizophrenia |
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| Gastric Fundus Cancer |
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| Retinal Vascular Disease |
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| Extracranial Neuroblastoma |
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| Microvascular Complications Of Diabetes 5 |
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| Central Nervous System Cancer |
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| Malignant Astrocytoma |
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| Mature B-Cell Neoplasm |
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| Retinal Disease |
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| Spinal Disease |
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| Connective Tissue Cancer |
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| Sensory System Disease |
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| Lymphatic System Cancer |
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| Bone Cancer |
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| Lymphatic System Disease |
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| Lung Cancer |
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| Central Nervous System Disease |
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| Immune System Disease |
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| Plasma Cell Neoplasm |
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| Eye Disease |
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| Lymphoma, Non-Hodgkin, Familial |
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| Nervous System Disease |
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| Connective Tissue Disease |
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Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Mus musculus | MIR20B | MGD | MGI:3618748 |
| Rattus norvegicus | MIR20B | RGD | RGD:2325420 |