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Common and rare variants associated with kidney stones and biochemical traits.
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This article is open access.Kidney stone disease is a complex disorder with a strong genetic component. We conducted a genome-wide association study of 28.3 million sequence variants detected through whole-genome sequencing of 2,636 Icelanders that were imputed into 5,419 kidney stone cases, including 2,172 cases with a history of recurrent kidney stones, and 279,870 controls. We identify sequence variants associating with kidney stones at ALPL (rs1256328[T], odds ratio (OR)=1.21, P=5.8 × 10(-10)) and a suggestive association at CASR (rs7627468[A], OR=1.16, P=2.0 × 10(-8)). Focusing our analysis on coding sequence variants in 63 genes with preferential kidney expression we identify two rare missense variants SLC34A1 p.Tyr489Cys (OR=2.38, P=2.8 × 10(-5)) and TRPV5 p.Leu530Arg (OR=3.62, P=4.1 × 10(-5)) associating with recurrent kidney stones. We also observe associations of the identified kidney stone variants with biochemical traits in a large population set, indicating potential biological mechanism.Rare Kidney Stone Consortium
5U54DK083908-07
National Center for Advancing Translational Sciences (NCATS) Rare Diseases Clinical Research Network (RDCRN)
Rare Kidney Stone Consortiu
PanelApp crowdsources expert knowledge to establish consensus diagnostic gene panels
I
ndividual genomes contain millions
of genetic variants. When considering
which variants may be causative for a
given rare genetic disease, applying filtering
criteria (such as allele frequency, predicted
variant consequence, familial segregation
and mode of inheritance) decreases this
number to hundreds of variants. However,
such a number remains labor intensive
for a diagnostic genetic testing laboratory
to interpret as part of routine service for
each patient or family. A list of genes
with evidence of disease causation in the
condition being assessed aids in prioritizing
and ranking the variants. This prioritization
decreases the number of candidates that
laboratories or clinical geneticists must
assess to identify the likely causative
variants for clinical reporting. Established
lists of genes with clear evidence of disease
causation (referred to herein as virtual gene
panels) are therefore a highly effective tool
in variant prioritization.M. Caulfield was funded by the National Institute for Health Research (NIHR) as part of the portfolio of translational research of the NIHR Biomedical Research Center at Barts and The London School of Medicine and Dentistry. He is supported as an NIHR senior investigator, and this work was funded by the MRC eMedLab award. This research was made possible through access to the data and findings generated by the 100,000 Genomes Project. The 100,000 Genomes Project is managed by Genomics England Limited (a wholly owned company of the Department of Health). The 100,000 Genomes Project is funded by the NIHR and NHSE. The Wellcome Trust, Cancer Research UK and the Medical Research Council have also funded research infrastructur