UPF3A - UPF3A regulator of nonsense mediated mRNA decay Gene
Also Known as UPF3; HUPF3A; RENT3A
Species: Homo sapiens
About UPF3A
This gene has 12 transcripts (splice variants), 195 orthologues and 1 paralogue. Ubiquitous expression in testis (RPKM 21.9), thyroid (RPKM 13.7) and 25 other tissues.
Summary
This gene encodes a protein that is part of a post-splicing multiprotein complex involved in both mRNA nuclear export and mRNA surveillance. The encoded protein is one of two functional homologs to yeast Upf3p. mRNA surveillance detects exported mRNAs with truncated open reading frames and initiates nonsense-mediated mRNA decay (NMD). When translation ends upstream from the last exon-exon junction, this triggers NMD to degrade mRNAs containing premature stop codons. This protein binds to the mRNA and remains bound after nuclear export, acting as a nucleocytoplasmic shuttling protein. It forms with Y14 a complex that binds specifically 20 nt upstream of exon-exon junctions. This gene is located on the long arm of chromosome 13. Several splice variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2017]
UPF3A Products (11)
| mRNA | Protein | Name |
|---|---|---|
| NM_001353644.2 | NP_001340573.1 | regulator of nonsense transcripts 3A isoform c |
| NM_001353645.1 | NP_001340574.1 | regulator of nonsense transcripts 3A isoform c |
| NM_001353646.1 | NP_001340575.1 | regulator of nonsense transcripts 3A isoform c |
| NM_001353647.1 | NP_001340576.1 | regulator of nonsense transcripts 3A isoform c |
| NM_001353648.2 | NP_001340577.1 | regulator of nonsense transcripts 3A isoform c |
| NM_001353649.1 | NP_001340578.1 | regulator of nonsense transcripts 3A isoform d |
| NM_001353650.1 | NP_001340579.1 | regulator of nonsense transcripts 3A isoform d |
| NM_001353651.2 | NP_001340580.1 | regulator of nonsense transcripts 3A isoform e |
| NM_001353652.2 | NP_001340581.1 | regulator of nonsense transcripts 3A isoform f |
| NM_023011.4 | NP_075387.1 | regulator of nonsense transcripts 3A isoform hUpf3p |
| NM_080687.3 | NP_542418.1 | regulator of nonsense transcripts 3A isoform hUpf3pdelta |
| Molecular Function GO Annotation | Evidence | Références | Source |
|---|---|---|---|
| enables mRNA binding |
IDA
IDA: Inferred from direct assay
|
11163187 | GOA |
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
11163187 | GOA |
| enables telomeric DNA binding |
IDA
IDA: Inferred from direct assay
|
17916692 | GOA |
| Biological Process GO Annotation | Evidence | Références | Source |
|---|---|---|---|
| NOT involved in nuclear-transcribed mRNA catabolic process, nonsense-mediated decay |
IDA
IDA: Inferred from direct assay
|
16601204 | GOA |
| involved in positive regulation of translation |
IDA
IDA: Inferred from direct assay
|
16601204 | GOA |
| Cellular Component GO Annotation | Evidence | Références | Source |
|---|---|---|---|
| part of exon-exon junction complex |
IDA
IDA: Inferred from direct assay
|
16601204 | GOA |
UPF3A Protein Structure
Smg4_UPF3: Smg-4/UPF3 family (62 - 228)
- 0
- 100
- 200
- 300
- 400
- 476 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
regulator of nonsense transcripts 3A |
|
UPF3A Protein-protein interaction Information
|
Type
|
Protein Name | Protein ID | Interactor | Interactor Species | Interactor ID | Detection Method | Références |
|---|---|---|---|---|---|---|---|
|
Intra
|
UPF3A | Q9H1J1 | UPF3B | Homo sapiens | Q9BZI7-2 | 19503078 | |
|
Intra
|
UPF3A | Q9H1J1 | UPF2 | Homo sapiens | Q9HAU5 | 19503078 | |
|
Intra
|
UPF3A | Q9H1J1 | UPF2 | Homo sapiens | Q9HAU5 | 11163187 | |
|
Intra
|
UPF3A | Q9H1J1 | UPF1 | Homo sapiens | Q92900 | 11163187 | |
|
Intra
|
UPF3A | Q9H1J1 | RBM8A | Homo sapiens | Q9Y5S9 | 11546873 |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Chromosome 1q21.1 Duplication Syndrome |
|
|
| Non-Syndromic X-Linked Intellectual Disability 82 |
|
|
| Pancreatic Adenosquamous Carcinoma |
|
|
| Metaphyseal Chondrodysplasia, Schmid Type |
|
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Bos taurus | UPF3A | VGNC | VGNC:36682 |
| Canis familiaris | UPF3A | VGNC | VGNC:48152 |
| Mus musculus | UPF3A | MGD | MGI:1914281 |
| Macaca mulatta | UPF3A | VGNC | VGNC:79244 |
| Felis catus | UPF3A | VGNC | VGNC:66840 |
| Rattus norvegicus | UPF3A | RGD | RGD:1308778 |
| Others | UPF3A | NCBI |