| UniProt functional annotation for Q9P0N9 | |||
| UniProt code: Q9P0N9. |
| Organism: | Homo sapiens (Human). | |
| Taxonomy: | Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo. | |
| Function: | Component of the TSC-TBC complex, that contains TBC1D7 in addition to the TSC1-TSC2 complex and consists of the functional complex possessing GTPase-activating protein (GAP) activity toward RHEB in response to alterations in specific cellular growth conditions. The small GTPase RHEB is a direct activator of the protein kinase activity of mTORC1 and the TSC-TBC complex acts as a negative regulator of mTORC1 signaling cascade by acting as a GAP for RHEB. Participates in the proper sensing of growth factors and glucose, but not amino acids, by mTORC1. It is unclear whether TBC1D7 acts as a GTPase-activating protein and additional studies are required to answer this question. {ECO:0000269|PubMed:22795129}. | |
| Subunit: | Component of the TSC-TBC complex (also named Rhebulator complex), composed of the TSC1-TSC2 heterodimer and TBC1D7. Interacts with TSC1 (via C-terminal half of the coiled-coil domain). {ECO:0000269|PubMed:17658474, ECO:0000269|PubMed:22795129}. | |
| Subcellular location: | Cytoplasmic vesicle {ECO:0000269|PubMed:17658474}. Note=Localizes in the cytoplasmic vesicles of the endomembrane in association with TSC1-TSC2 complex. | |
| Tissue specificity: | Highly expressed in heart, and slightly in kidney, liver and placenta. {ECO:0000269|PubMed:17658474}. | |
| Disease: | Macrocephaly/megalencephaly syndrome, autosomal recessive (MGCPH) [MIM:248000]: A disorder characterized by abnormal enlargement of the cerebral hemispheres, mental retardation, large head, optic atrophy and underdeveloped skeletal musculature. Head enlargement may be evident at birth or the head may become abnormally large in the early years of life. Additional clinical features include behavioral abnormalities, psychosis, learning difficulties, prognathism, myopia and astigmatism. {ECO:0000269|PubMed:23687350, ECO:0000269|PubMed:24515783}. Note=The disease is caused by variants affecting the gene represented in this entry. | |
Annotations taken from UniProtKB at the EBI.