RPS19
Chr 19ADribosomal protein S19
Also known as: DBA, DBA1, LOH19CR1, S19, eS19
RPS19 encodes a ribosomal protein that is a component of the small 40S ribosomal subunit and is required for pre-rRNA processing and maturation of ribosomal subunits. Mutations cause Diamond-Blackfan anemia, a constitutional anemia characterized by absent or decreased red blood cell precursors, with autosomal dominant inheritance. The gene is highly constrained against loss-of-function variants (pLI 0.92), reflecting its essential role in protein synthesis.
Definitive — sufficient evidence for diagnostic panels
Population Genetics & Constraint
gnomAD v4 — loss-of-function & missense intolerance
More LoF-intolerant than ~75% of genes
Mild missense constraint
This gene has evidence for multiple mechanisms of pathogenicity (loss-of-function and dominant-negative). Both the Badonyi & Marsh prediction and the broader genomic evidence point to loss-of-function as the predominant mechanism. Different variants in this gene may act through different mechanisms — interpret in context of the specific variant.
Literature Evidence
Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312. Mechanism ranking also informed by gnomAD constraint, ClinVar, and ClinGen data.
ClinVar Variant Classifications
0 submitted variants in ClinVar
Protein Context — Lollipop Plot
RPS19 · protein map & ClinVar variants
Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.
3D Protein StructureAlphaFold
External Resources
Links to major genomics databases and tools
Clinical Trials
Active and recruiting trials from ClinicalTrials.gov
Investigation of the Genetics of Hematologic Diseases
RECRUITINGFamilial Investigations of Childhood Cancer Predisposition
RECRUITINGMobilization of CD34+ Peripheral Blood Stem Cells in Patients With Diamond Blackfan Anemia Syndrome (DBAS)
RECRUITINGCancer in Inherited Bone Marrow Failure Syndromes
RECRUITINGAssessing the Safety, Tolerability, and Efficacy of APR-2020 in Pediatric and Adolescent Subjects With RPS19 Deficient Diamond-Blackfan Anemia
RECRUITINGExternal Resources
Links to major genomics databases and tools