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Gene-Based Test

Definition
AI-generated

A gene-based association test aggregates signal across multiple variants within a gene or functional unit—commonly rare or low-frequency alleles in burden tests, or variance-component tests such as SKAT—so that weak per-variant effects or sparse data can still yield gene-level evidence.

Topics
GWAS
Synonyms
Rare-variant burden test (when aggregation is a simple allele count threshold)
Related
Adaptive Burden Test Burden Test Rare Variant Aggregation Test

Why it matters in GWAS

Standard single-variant GWAS is underpowered for rare coding variants; gene-based approaches are standard in exome and sequencing studies and complement pathway-level methods.

Example usage

"The primary methods include Gene-Based Test as part of the association and model-comparison workflow."

Adaptive Burden Test Burden Test Rare Variant Aggregation Test SKAT SKAT-O Frameshift Variant Loss-of-Function Variant Missense Variant Pathway Analysis Rare Variant Whole-Exome Sequencing (WES) Whole-Genome Sequencing (WGS)
Related-term network

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Node order. The current term is first. Next come every page linked from Related terms, in the same top-to-bottom order as that list. Then new terms appear in two-hop layers: for each of those direct neighbors (in that same order), their related terms are appended if not already listed. A third pass does the same for two-hop nodes. The walk stops when a fixed maximum number of nodes is reached.

References

  • Boutry S, Helaers R, et al. (2023). Rare variant association on unrelated individuals in case-control studies using aggregation tests: existing methods and current limitations. Brief Bioinform. https://doi.org/10.1093/bib/bbad412
  • Wu MC, et al. (2011). Rare-variant association testing for sequencing data with the sequence kernel association test. Am J Hum Genet.
  • Uffelmann E, et al. (2021). Genome-wide association studies. Nat Rev Methods Primers. https://doi.org/10.1038/s43586-021-00056-9
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