# RICTOR

Source: https://onco.cc/targets/rictor/  
OnCo record `rictor` (Target). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

RICTOR (Rapamycin-insensitive companion of mTOR) is a gene. The public catalogues list it as a drug target and a biomarker, and clinical evidence ties its variants to diagnosis, prognosis or drug response. Tied to Gastric & gastro-oesophageal junction cancer, Lung cancer, Breast cancer and 5 more.

## Summary

Component of the mechanistic target of rapamycin complex 2 (mTORC2), which transduces signals from growth factors to pathways involved in proliferation, cytoskeletal organisation, lipogenesis and anabolic output. In response to growth factors, mTORC2 phosphorylates and activates AGC protein kinase family members, including AKT (AKT1, AKT2 and AKT3), PKC (PRKCA, PRKCB and PRKCE) and SGK1. In contrast to mTORC1, mTORC2 is nutrient-insensitive.

CIViC holds 4 clinical evidence items and 0 assertions across 1 variant, naming Vistusertib, Sapanisertib, MTOR Kinase Inhibitor AZD8055 and Onatasertib. Open Targets scores its association with cancer at 0.66 (direct and indirect evidence; datatypes literature 0.98, affected pathway 0.61, genetic association 0.00, somatic mutation 0.98).

## Fields

- Kind: Target
- Last checked: 2026-09-23
- Also known as: RPTOR independent companion of MTOR complex 2; Rapamycin-insensitive companion of mTOR; MGC39830; AVO3; KIAA1999
- Tags: cancer-genes-wave
- Symbol: RICTOR
- Class: other
- Biology: Component of the mechanistic target of rapamycin complex 2 (mTORC2), which transduces signals from growth factors to pathways involved in proliferation, cytoskeletal organisation, lipogenesis and anabolic output. In response to growth factors, mTORC2 phosphorylates and activates AGC protein kinase family members, including AKT (AKT1, AKT2 and AKT3), PKC (PRKCA, PRKCB and PRKCE) and SGK1. In contrast to mTORC1, mTORC2 is nutrient-insensitive. Within the mTORC2 complex, RICTOR probably acts as a molecular adapter. RICTOR is responsible for the FKBP12-rapamycin-insensitivity of mTORC2. mTORC2 plays a critical role in AKT1 activation by mediating phosphorylation of different sites depending on the context, such as 'Thr-450', 'Ser-473', 'Ser-477' or 'Thr-479', facilitating the phosphorylation of the activation loop of AKT1 on 'Thr-308' by PDPK1/PDK1 which is a prerequisite for full activation. mTORC2 catalyses the phosphorylation of SGK1 at 'Ser-422' and of PRKCA on 'Ser-657'. The mTORC2 complex also phosphorylates various proteins involved in insulin signalling, such as FBXW8 and IGF2BP1. mTORC2 acts upstream of Rho GTPases to regulate the actin cytoskeleton, probably by activating one or more Rho-type guanine nucleotide exchange factors. mTORC2 promotes the serum-induced formation of stress-fibres or F-actin. Location: Cell membrane; Endoplasmic reticulum membrane; Lysosome membrane (UniProt). Locus 5p13.1 (HGNC).
- Where found: Gastric & gastro-oesophageal junction cancer: Open Targets association 0.51 with gastric cancer (MONDO_0001056); CIViC evidence names this disease; Lung cancer: Open Targets association 0.57 with lung cancer (MONDO_0008903); Breast cancer: Open Targets association 0.54 with breast cancer (MONDO_0007254); Skin cancer: Open Targets association 0.52 with skin cancer (MONDO_0002898); Colorectal cancer: Open Targets association 0.50 with colorectal cancer (MONDO_0005575); Small-cell lung cancer: CIViC evidence names this disease

## Notes

- Written by scripts/fetch-cancer-genes.ts from CIViC, Open Targets, IntOGen, HGNC and UniProt; the function text is UniProt's, condensed and in UK spelling. Roles: CIViC lists 4 therapies; CIViC holds 4 clinical evidence items on its variants. Evidence tier "clinical-evidence" is the strongest of those signals.
- Prevalence not recorded: none of the sources gives a positivity rate.

## Sources

- HGNC HGNC:28611: https://www.genenames.org/data/gene-symbol-report/#!/hgnc_id/HGNC:28611
- UniProt Q6R327: https://www.uniprot.org/uniprotkb/Q6R327/entry
- NCBI Gene 253260: https://www.ncbi.nlm.nih.gov/gene/253260
- Ensembl ENSG00000164327: https://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000164327

## Connected records

- collections: [CIViC](https://onco.cc/collections/civic/), [Open Targets Platform](https://onco.cc/collections/open-targets/)
- cancers: [Breast cancer (all types)](https://onco.cc/cancers/breast-cancer/), [Colorectal cancer](https://onco.cc/cancers/colorectal/), [Gastric & gastro-oesophageal junction cancer](https://onco.cc/cancers/gastric/), [Lung cancer (all types)](https://onco.cc/cancers/lung-cancer/), [Melanoma](https://onco.cc/cancers/melanoma/), [Non-small-cell lung cancer](https://onco.cc/cancers/nsclc/), [Skin cancer (all types)](https://onco.cc/cancers/skin-cancer/), [Small-cell lung cancer](https://onco.cc/cancers/sclc/)

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JSON: https://onco.cc/api/v1/entities/rictor.json