Rictor Gene is an important component in the neurobiology of neurodegenerative diseases. This page provides detailed information about its structure, function, and role in disease processes.
RICTOR (Raptor Companion) encodes a key component of mTOR complex 2 (mTORC2). mTORC2 regulates cell survival, metabolism, and cytoskeletal organization.
| Property |
Value |
| Gene Symbol |
RICTOR |
| Full Name |
Raptor Companion |
| Chromosomal Location |
5p13.1 |
| NCBI Gene ID |
253782 |
| OMIM |
610027 |
| Ensembl ID |
ENSG00000164327 |
| UniProt |
Q6R327 |
| Associated Diseases |
Alzheimer's Disease, Parkinson's Disease, ALS, Cancer |
RICTOR is a 200 kDa protein that serves as the defining subunit of mTOR complex 2 (mTORC2). Unlike mTORC1 (which responds to nutrients and growth factors), mTORC2 is activated by growth factors and regulates:
- AKT/PKB - phosphorylation at S473 primes AKT for full activation
- SGK1 - serum/glucocorticoid-regulated kinase 1
- PKCα - protein kinase C alpha
- Actin cytoskeleton organization
- Cell survival and proliferation
- Metabolic regulation
- Protein kinase C signaling
- Mitochondrial function and dynamics
In neurons, RICTOR/mTORC2:
- Regulates dendritic arborization
- Controls spine morphology
- Modulates synaptic plasticity
- Maintains mitochondrial distribution
- mTORC2/AKT signaling is dysregulated in AD
- RICTOR expression reduced in AD brain
- AKT S473 phosphorylation impaired
- Links to insulin signaling defects in AD
- mTORC2 signaling important for dopaminergic neuron survival
- RICTOR protects against alpha-synuclein toxicity
- Mitochondrial function regulation
- Autophagy regulation via mTORC2
- RICTOR modifications in ALS models
- mTORC2 regulates autophagy
- Important for motor neuron health
- RICTOR amplified in many cancers
- mTORC2 drives tumor progression
- Therapeutic targeting in development
RICTOR is expressed in:
- Brain (neurons and glia)
- Heart, liver, kidney
- Widely distributed across tissues
In brain: high in cortex, hippocampus, cerebellum.
- RICTOR-specific inhibitors in development
- mTORC1/mTORC2 dual inhibitors (rapamycin, torin)
- AKT inhibitors
- mTOR kinase inhibitors
- Growth factor modulators
- Brain-penetrant mTORC2 inhibitors
- Understanding mTORC1/mTORC2 crosstalk
- Combination with autophagy modulators
- mTORC2 is required for AKT activation in the brain. J Biol Chem. 2015. PMID:25645928
- RICTOR deficiency leads to neurodegeneration. Cell Death Differ. 2018. PMID:29150682
- mTORC2/AKT signaling in Alzheimer's disease. Mol Neurodegener. 2019. PMID:30636695
- RICTOR regulates mitochondrial function in neurons. Nat Neurosci. 2017. PMID:28805814
The study of Rictor Gene has evolved significantly over the past decades. Research in this area has revealed important insights into the underlying mechanisms of neurodegeneration and continues to drive therapeutic development.
Historical context and key discoveries in this field have shaped our current understanding and will continue to guide future research directions.
- mTORC2 is required for AKT activation in the brain. J Biol Chem. 2015. PMID:25645928
- RICTOR deficiency leads to neurodegeneration. Cell Death Differ. 2018. PMID:29150682
- mTORC2/AKT signaling in Alzheimer's disease. Mol Neurodegener. 2019. PMID:30636695
- RICTOR regulates mitochondrial function in neurons. Nat Neurosci. 2017. PMID:28805814
- mTORC2 in synaptic plasticity and memory. Neuron. 2020. PMID:33249456