# RPS19

Source: https://onco.cc/targets/rps19/  
OnCo record `rps19` (Target). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

RPS19 (Small ribosomal subunit protein eS19) is a gene. The public catalogues list it as a drug target, and clinical evidence ties its variants to diagnosis, prognosis or drug response.

## Summary

Component of the small ribosomal subunit. The ribosome is a large ribonucleoprotein complex responsible for the synthesis of proteins in the cell. Required for pre-rRNA processing and maturation of 40S ribosomal subunits.

Open Targets scores its association with cancer at 0.50 (direct and indirect evidence; datatypes clinical 0.11, genetic literature 0.76, literature 0.64, genetic association 0.18, animal model 0.43).

## Fields

- Kind: Target
- Last checked: 2026-09-23
- Also known as: ribosomal protein S19; Small ribosomal subunit protein eS19; S19; eS19; LOH19CR1
- Tags: cancer-genes-wave
- Symbol: RPS19
- Class: other
- Biology: Component of the small ribosomal subunit. The ribosome is a large ribonucleoprotein complex responsible for the synthesis of proteins in the cell. Required for pre-rRNA processing and maturation of 40S ribosomal subunits. Part of the small subunit (SSU) processome, first precursor of the small eukaryotic ribosomal subunit. During the assembly of the SSU processome in the nucleolus, many ribosome biogenesis factors, an RNA chaperone and ribosomal proteins associate with the nascent pre-rRNA and work in concert to generate RNA folding, modifications, rearrangements and cleavage as well as targeted degradation of pre-ribosomal RNA by the RNA exosome. Location: Cytoplasm; Nucleus, nucleolus (UniProt). Locus 19q13.2 (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: Open Targets known-drug datatype score 0.11. Evidence tier "clinical-evidence" is the strongest of those signals.
- Prevalence not recorded: none of the sources gives a positivity rate.

## Sources

- HGNC HGNC:10402: https://www.genenames.org/data/gene-symbol-report/#!/hgnc_id/HGNC:10402
- UniProt P39019: https://www.uniprot.org/uniprotkb/P39019/entry
- NCBI Gene 6223: https://www.ncbi.nlm.nih.gov/gene/6223
- Ensembl ENSG00000105372: https://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000105372

## Connected records

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

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JSON: https://onco.cc/api/v1/entities/rps19.json