Optimizing Genetic Analyses for Movement Disorders: A Unified Panel Approach and Targeted Reanalysis of 4,046 Clinical Exomes

Gene-disease validity curation (Green, Amber, Red tiers) and targeted reanalysis of unsolved exomes

The authors propose a reproducible framework for designing a unified virtual panel for movement disorders, starting from 2,090 genes extracted from multiple resources and assessed against predefined gene-disease validity criteria. The final panel includes 537 Green, 36 Amber and 67 Red genes, adding 283 genes and removing 42 compared with the previous panel. Only 17% of Green genes are linked to a single movement disorder feature, and 43% show both pediatric and adult presentations. Targeted reanalysis of 4,046 unsolved exomes with a 220-gene list identified 37 clinically relevant variants in 28 genes and resolved 16 cases, a 0.4% increase in diagnostic yield.

Synthesis written by Geno'X. For the full original abstract, please refer to the source publication.

The main value lies in the gene-phenotype curation and in showing that existing exome data are worth re-querying as knowledge advances. The measured gain remains modest (0.4%), and the panel here is only an analysis filter applied to the exome: the lasting issue is updating annotation and periodic reanalysis, not the list itself. The broad phenotypic and age-at-onset heterogeneity argues against overly narrow filters.

Analysis by Dr Thibaut Benquey