Life Technologies Corporation

James Veitch

Paul Williams

Dumitru Brinza

Fiona Hyland

Kelli Bramlett

Seth Sadis

Jian Gu

Rajesh Gottimukkala

Jeoffrey Schageman

Rongsu Qi

Amir Marcovitz

Varun Bagai

Karel Konvicka

Charles Scafe

Yiping Zhan

Scott Myrand

A method for detecting a gene fusion includes amplifying a nucleic acid sample in the presence of primer pool to produce a plurality of amplicons. The primer pool includes primers targeting a plurality of exon-exon junctions of a driver gene. The amplicons correspond to the exon-exon junctions. The amplicons are sequenced and aligned to a reference sequence. The number of reads corresponding to each amplicon is normalized to give a normalized read count. A baseline correction is applied to the normalized read counts for the amplicons to form corrected read counts. A binary segmentation score is calculated for each corrected read count. A predicted breakpoint for the gene fusion is determined based on the amplicon index corresponding to the maximum absolute binary segmentation score. Gene fusion events may be detected in a partner agnostic manner, i.e. without prior knowledge of the specific fusion partner genes or specific breakpoint information.

Methods for partner agnostic gene fusion detection

Methods, systems, and computer-readable media are disclosed for calculating corrected amplicon coverages. One method includes: mapping a plurality of reads of a plurality of amplicons based on amplified target regions of a sample suspected of having one or more genetic abnormalities to a reference sequence that includes one or more nucleic acid sequences corresponding to the amplified target regions; calculating amplicon coverages and total reads, wherein amplicon coverages is a number of reads mapped to an amplicon, and total reads is a number of mapped reads; and calculating corrected amplicon coverages based on the calculated amplicon coverages and calculated total reads by applying a batch effect correction.

Methods for calculating corrected amplicon coverages

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Berkeley, CA, United States of America

James Veitch