# CUL1

Source: https://onco.cc/targets/cul1/  
OnCo record `cul1` (Target). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

CUL1 (Cullin-1) is a gene. In the public catalogues the evidence so far is association rather than a proven role.

## Summary

Core component of multiple cullin-RING-based SCF (SKP1-CUL1-F-box protein) E3 ubiquitin-protein ligase complexes, which mediate the ubiquitination of proteins involved in cell cycle progression, signal transduction and transcription. SCF complexes and ARIH1 collaborate in tandem to mediate ubiquitination of target proteins. In the SCF complex, serves as a rigid scaffold that organises the SKP1-F-box protein and RBX1 subunits.

Open Targets scores its association with cancer at 0.53 (direct and indirect evidence; datatypes literature 0.90, affected pathway 0.83, genetic association 0.00).

## Fields

- Kind: Target
- Last checked: 2026-09-23
- Also known as: cullin 1; Cullin-1
- Tags: cancer-genes-wave
- Symbol: CUL1
- Class: other
- Biology: Core component of multiple cullin-RING-based SCF (SKP1-CUL1-F-box protein) E3 ubiquitin-protein ligase complexes, which mediate the ubiquitination of proteins involved in cell cycle progression, signal transduction and transcription. SCF complexes and ARIH1 collaborate in tandem to mediate ubiquitination of target proteins. In the SCF complex, serves as a rigid scaffold that organises the SKP1-F-box protein and RBX1 subunits. May contribute to catalysis through positioning of the substrate and the ubiquitin-conjugating enzyme. The E3 ubiquitin-protein ligase activity of the complex is dependent on the neddylation of the cullin subunit and exchange of the substrate recognition component is mediated by TIP120A/CAND1. The functional specificity of the SCF complex depends on the F-box protein as substrate recognition component. Locus 7q36.1 (HGNC).

## 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: none stated by the sources. Evidence tier "association-only" is the strongest of those signals.
- Prevalence not recorded: none of the sources gives a positivity rate.

## Sources

- HGNC HGNC:2551: https://www.genenames.org/data/gene-symbol-report/#!/hgnc_id/HGNC:2551
- UniProt Q13616: https://www.uniprot.org/uniprotkb/Q13616/entry
- NCBI Gene 8454: https://www.ncbi.nlm.nih.gov/gene/8454
- Ensembl ENSG00000055130: https://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000055130

## Connected records

- collections: [Open Targets Platform](https://onco.cc/collections/open-targets/)

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JSON: https://onco.cc/api/v1/entities/cul1.json