LAMTOR3 — Late endosomal/lysosomal adaptor, MAPK and MTOR activator 3
LAMTOR3 belongs to a gene co-expression module in 1 of 30 SCUBA cell types. Each module groups genes that rise and fall together in that cell type; the genes it shares a module with are its closest co-expression partners there.
LAMTOR3's module in each cell type
| Cell type | Module | Shares the module with | |
|---|---|---|---|
| Colonocytes | mTOR Lysosomal Sensing Nutrient processing | ADIPOR2, AP3S1, C4orf19, CERS2, CRB3, F2RL1, KCTD9, PLEKHF2 +12 more | View in SCUBA |
About the gene
| Synonyms | MAP2K1IP1, MAPBP, MAPKSP1, MP1, Ragulator3 |
|---|---|
| Chromosome | 4: 99878336-99894428 |
| Predicted location | Intracellular |
| Essential gene | Yes |
| Protein class | Essential proteins, Predicted intracellular proteins |
Function
As part of the Ragulator complex it is involved in amino acid sensing and activation of mTORC1, a signaling complex promoting cell growth in response to growth factors, energy levels, and amino acids. Activated by amino acids through a mechanism involving the lysosomal V-ATPase, the Ragulator plays a dual role for the small GTPases Rag (RagA/RRAGA, RagB/RRAGB, RagC/RRAGC and/or RagD/RRAGD): it (1) acts as a guanine nucleotide exchange factor (GEF), activating the small GTPases Rag and (2) mediates recruitment of Rag GTPases to the lysosome membrane. Activated Ragulator and Rag GTPases function as a scaffold recruiting mTORC1 to lysosomes where it is in turn activated. Adapter protein that enhances the efficiency of the MAP kinase cascade facilitating the activation of MAPK2 (By similarity).
Human Protein Atlas · Open Targets · UniProt
Gene annotation from the Human Protein Atlas and UniProt; see sources & licences.