The EXOSC4 protein is a non-catalytic component of the RNA exosome complex that processes and degrades various cellular RNAs, including rRNA maturation, mRNA turnover, and elimination of aberrant transcripts. Mutations in EXOSC4 cause autosomal recessive short stature, hearing loss, retinitis pigmentosa, and distinctive facies (SHRF) syndrome, affecting growth, sensory organs, and development. This gene shows relatively low constraint to loss-of-function variation, suggesting the recessive inheritance pattern aligns with its tolerance profile.

OMIMResearchSummary from RefSeq, UniProt
DNmechanismLOEUF 0.98
Clinical SummaryEXOSC4
Population Constraint (gnomAD)
Low constraint (pLI 0.07) — loss-of-function variants are relatively tolerated in the population.

Population Genetics & Constraint

gnomAD v4 — loss-of-function & missense intolerance

Tolerant — LoF & missense variants common in population
LoF Constraint
0.98LOEUF
pLI 0.068
Z-score 1.62
OE 0.38 (0.170.98)
Tolerant

Typical tolerance to LoF variation

Missense Constraint
0.56Z-score
OE missense 0.87 (0.751.01)
128 obs / 147.0 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.38 (0.170.98)
00.351.4
Missense OE0.87 (0.751.01)
00.61.4
Synonymous OE0.88
01.21.6
LoF obs/exp: 3 / 7.9Missense obs/exp: 128 / 147.0Syn Z: 0.73
DN
0.6551th %ile
GOF
0.4875th %ile
LOF
0.3744th %ile

The highest-scoring mechanism for this gene is dominant-negative.

DNprediction above median

Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.

Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.

ClinVar Variant Classifications

0 submitted variants in ClinVar

Protein Context — Lollipop Plot

EXOSC4 · protein map & ClinVar variants

Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.

3D Protein StructureAlphaFold

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

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Clinical Literature
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