MVB12B - multivesicular body subunit 12B Gene
Also Known as C9orf28; FAM125B
Species: Homo sapiens
About MVB12B
This gene has 6 transcripts (splice variants) and 261 orthologues. Broad expression in brain (RPKM 8.1), lung (RPKM 5.2) and 23 other tissues.
Summary
The protein encoded by this gene is a component of the ESCRT-I complex, a heterotetramer, which mediates the sorting of ubiquitinated cargo protein from the plasma membrane to the endosomal vesicle. ESCRT-I complex plays an essential role in HIV budding and endosomal protein sorting. Depletion and overexpression of this and related protein (MVB12A) inhibit HIV-1 infectivity and induce unusual viral assembly defects, indicating a role for MVB12 subunits in regulating ESCRT-mediated virus budding. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2011]
MVB12B Products (2)
| mRNA | Protein | Name |
|---|---|---|
| NM_001011703.3 | NP_001011703.1 | multivesicular body subunit 12B isoform 2 |
| NM_033446.3 | NP_258257.1 | multivesicular body subunit 12B isoform 1 |
| Molecular Function GO Annotation | Evidence | Références | Source |
|---|---|---|---|
| enables lipid binding |
IMP
IMP: Inferred from mutant phenotype
|
22232651 | GOA |
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
20654576 | GOA |
| NOT enables ubiquitin binding |
IDA
IDA: Inferred from direct assay
|
20654576 | GOA |
| Biological Process GO Annotation | Evidence | Références | Source |
|---|---|---|---|
| involved in regulation of epidermal growth factor receptor signaling pathway |
IMP
IMP: Inferred from mutant phenotype
|
20654576 | GOA |
| involved in viral budding |
IMP
IMP: Inferred from mutant phenotype
|
18005716 | GOA |
| involved in virus maturation |
IMP
IMP: Inferred from mutant phenotype
|
18005716 | GOA |
| Cellular Component GO Annotation | Evidence | Références | Source |
|---|---|---|---|
| part of ESCRT I complex |
IDA
IDA: Inferred from direct assay
|
18005716 | GOA |
| part of ESCRT I complex |
IPI
IPI: Inferred from physical interaction
|
18005716 | GOA |
| located in cytosol |
IDA
IDA: Inferred from direct assay
|
22232651 | GOA |
| located in early endosome |
IDA
IDA: Inferred from direct assay
|
22232651 | GOA |
| located in late endosome |
IDA
IDA: Inferred from direct assay
|
22232651 | GOA |
| located in nucleus |
IDA
IDA: Inferred from direct assay
|
22232651 | GOA |
| located in plasma membrane |
IDA
IDA: Inferred from direct assay
|
22232651 | GOA |
| located in vesicle |
IDA
IDA: Inferred from direct assay
|
20654576 | GOA |
MVB12B Protein Structure
DUF2464: Multivesicular body subunit 12 (48 - 299)
- 0
- 100
- 200
- 300
- 319 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
multivesicular body subunit 12B |
|
MVB12B Protein-protein interaction Information
|
Type
|
Protein Name | Protein ID | Interactor | Interactor Species | Interactor ID | Detection Method | Références |
|---|---|---|---|---|---|---|---|
|
Intra
|
MVB12B | Q9H7P6 | LNX1 | Homo sapiens | Q8TBB1 | 25416956 | |
|
Intra
|
MVB12B | Q9H7P6 | LNX1 | Homo sapiens | Q8TBB1 | 25416956 | |
|
Intra
|
MVB12B | Q9H7P6 | LNX1 | Homo sapiens | Q8TBB1 | 25416956 |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Chronic Dacryocystitis |
|
|
| Glaucoma, Primary Open Angle |
|
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Rattus norvegicus | MVB12B | RGD | RGD:1309709 |
| Felis catus | MVB12B | VGNC | VGNC:63668 |
| Bos taurus | MVB12B | VGNC | VGNC:102829 |
| Mus musculus | MVB12B | MGD | MGI:1919793 |
| Macaca mulatta | MVB12B | VGNC | VGNC:75010 |
| Canis familiaris | MVB12B | VGNC | VGNC:43507 |
| Others | MVB12B | NCBI |