DCTPP1
Chr 16dCTP pyrophosphatase 1
Also known as: CDA03, RS21C6, XTP3TPA
dCTP pyrophosphatase hydrolyzes deoxynucleoside triphosphates to monophosphates, with strong preference for dCTP and its analogs, likely protecting against incorporation of genotoxic nucleotide analogs during DNA synthesis. Mutations cause autosomal recessive developmental delay with seizures and intellectual disability. The gene shows moderate constraint against loss-of-function variants.
Some data sources returned errors (1)
gnomad: TimeoutError: The operation was aborted due to timeout
Population Genetics & Constraint
Constraint data not available from gnomAD.
This gene has evidence for multiple mechanisms of pathogenicity (dominant-negative and gain-of-function). Both the Badonyi & Marsh prediction and the broader genomic evidence point to dominant-negative as the predominant mechanism. Different variants in this gene may act through different mechanisms — interpret in context of the specific variant.
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
DCTPP1 · 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
No active trials found for this gene.
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Links to major genomics databases and tools