Abstract
PMS2 is one of the mismatch repair genes included in routine genetic testing for Lynch syndrome, colorectal, ovarian, and endometrial cancers. PMS2 is also included in the American College of Medical Genetics and Genomics (ACMG) secondary findings gene list in the context of clinical exome and genome sequencing. However, sequencing of PMS2 by short-read based next generation sequencing (NGS) technologies is complicated by the presence of the pseudogene PMS2CL and often supplemented by long-range based approaches such as long-range polymerase chain reaction (LR-PCR) or long-read based next generation sequencing, which increases the complexity and cost. Here, we described a bioinformatics homology triage workflow that can eliminate the need for long-read based testing for PMS2 for the vast majority of patients undergoing exome sequencing, thus simplifying PMS2 testing and reducing the associated cost.
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