The functional landscape of coding variation in the familial hypercholesterolemia gene LDLR

• Science, Volume 391, Issue 6787, February 2026.

Article Summaries:

• Summary

In a February 2026 issue of Science, researchers present a comprehensive functional atlas of coding variants in the LDLR gene, the primary culprit in familial hypercholesterolemia (FH). Using high‑throughput deep‑mutational scanning, the team assayed the impact of over 10,000 missense and nonsense variants on LDLR protein activity and cell‑surface expression. The resulting variant‑effect map distinguishes pathogenic from benign changes, revealing novel hotspots of disease‑causative mutations and refining genotype‑phenotype correlations. The study offers a valuable resource for clinicians and genetic counselors, improving variant interpretation and potentially guiding personalized therapeutic strategies for FH patients.

Sources:

• https://www.science.org/doi/abs/10.1126/science.ady7186?af=R