DCST2

Chr 1

DC-STAMP domain containing 2

Also known as: SPE42

Predicted to be involved in fusion of sperm to egg plasma membrane involved in single fertilization and sperm-egg recognition. Predicted to be located in acrosomal membrane. [provided by Alliance of Genome Resources, Jul 2025]

OMIMResearchGenerating clinical summary…
MultiplemechanismLOEUF 0.88
Clinical SummaryDCST2
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?
0.88LOEUF
pLI 0.000
Z-score 2.16
OE 0.63 (0.460.88)
Tolerant

Typical tolerance to LoF variation

Missense Constraint?
-0.13Z-score
OE missense 1.02 (0.941.10)
474 obs / 465.9 exp
Tolerant

Tolerant to missense variation

Observed / Expected Ratios?
LoF OE?0.63 (0.460.88)
00.351.4
Missense OE?1.02 (0.941.10)
00.61.4
Synonymous OE?0.97
01.21.6
LoF obs/exp: 25 / 39.7Missense obs/exp: 474 / 465.9Syn Z: 0.34

This gene — mechanism propensity

DN
0.74top 25%
GOF
0.80top 10%
LOF
0.2288th %ile

This gene has evidence for multiple mechanisms of pathogenicity (gain-of-function and dominant-negative). Both the Badonyi & Marsh prediction and the broader genomic evidence point to gain-of-function as the predominant mechanism. Different variants in this gene may act through different mechanisms — interpret in context of the specific variant.

GOFprediction above median
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

DCST2 · protein map & ClinVar variants

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

Clinical Trials

Active and recruiting trials from ClinicalTrials.gov

No active trials found for this gene.

Search ClinicalTrials.gov →