Parental co-segregation analysis significantly reduces but does not eliminate VUS rate in multi-gene panel testing

Session:
#73
Date:
Thursday, Oct 5, 2017 12:30pm – 2:00pm
Conference:
Authors:
Amanda Bergner, Elaine C. Weltmer, Jade Tinker, Jing Wang, Tiffiney Carter, Zöe Powis
  • Parental co-segregation analysis was informative in nearly 40% of cases, including 4/6 variants upgraded from variant of unknown significance (VUS) to likely pathogenic variant (VLP)
  • Gene-specific characteristics, such as reduced penetrance, variable expressivity, and multiple inheritance patterns, were the most frequent barrier to reclassification, accounting for 43% of variants that remained VUS