RPS19

Chr 19AD

ribosomal 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.

OMIMResearchSummary from RefSeq, OMIM, UniProt
LOFmechanismADLOEUF 0.371 OMIM phenotype
Clinical SummaryRPS19
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Gene-Disease Validity (ClinGen)
Diamond-Blackfan anemia · ADDefinitive

Definitive — sufficient evidence for diagnostic panels

Population Constraint (gnomAD)
Highly constrained gene — heterozygous loss-of-function variants are very rare in the population (pLI 0.92). One damaged copy is likely sufficient to cause disease.
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Clinical Trials
5 active or recruiting trials — potential therapeutic options may be available

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

LoF intolerant — likely haploinsufficient
LoF Constraint
0.37LOEUF
pLI 0.921
Z-score 2.64
OE 0.00 (0.000.37)
Highly constrained

More LoF-intolerant than ~75% of genes

Missense Constraint
1.45Z-score
OE missense 0.57 (0.460.72)
53 obs / 92.2 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.00 (0.000.37)
00.351.4
Missense OE0.57 (0.460.72)
00.61.4
Synonymous OE1.44
01.21.6
LoF obs/exp: 0 / 8.1Missense obs/exp: 53 / 92.2Syn Z: -2.13
Curated Mechanism (G2P)Gene2Phenotype (DDG2P) ↗
definitiveRPS19-related Diamond-Blackfan anemiaLOFAD
DN
0.4190th %ile
GOF
0.2099th %ile
LOF
0.74top 10%

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.

LOFprediction above median · 1 literature citation · LOEUF 0.37
DN1 literature citation

Literature Evidence

DNA transgenic mouse model demonstrates a dominant negative effect of a point mutation in the RPS19 gene associated with Diamond-Blackfan anemia.PMID:20606162
LOFp53-Independent cell cycle and erythroid differentiation defects in murine embryonic stem cells haploinsufficient for Diamond Blackfan anemia-proteins: RPS19 versus RPL5.PMID:24558476

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
Clinical Literature
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