DDX52

Chr 17

DExD-box helicase 52

Also known as: HUSSY19, ROK1

DDX52 encodes an RNA-binding protein required for ribosome biogenesis and may regulate translation of specific mRNAs involved in cell cycle progression. Mutations cause autosomal recessive intellectual disability with microcephaly and growth retardation, typically presenting in early childhood. The gene is highly intolerant to loss-of-function variants, reflecting its essential role in protein synthesis machinery.

OMIMResearchSummary from RefSeq, UniProt
DNmechanismLOEUF 1.09
Clinical SummaryDDX52
Population Constraint (gnomAD)
Low constraint (pLI 0.00) — 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
1.09LOEUF
pLI 0.000
Z-score 1.14
OE 0.79 (0.581.09)
Tolerant

Highly tolerant — LoF variants common in population

Missense Constraint
0.18Z-score
OE missense 0.97 (0.881.07)
301 obs / 310.1 exp
Tolerant

Mild missense constraint

Observed / Expected Ratios
LoF OE0.79 (0.581.09)
00.351.4
Missense OE0.97 (0.881.07)
00.61.4
Synonymous OE1.01
01.21.6
LoF obs/exp: 27 / 34.2Missense obs/exp: 301 / 310.1Syn Z: -0.10
DN
0.7228th %ile
GOF
0.5760th %ile
LOF
0.3746th %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

DDX52 · 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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