%0 Journal Article %T Misexpression of inactive genes in whole blood is associated with nearby rare structural variants. %A Vanderstichele T %A Burnham KL %A de Klein N %A Tardaguila M %A Howell B %A Walter K %A Kundu K %A Koeppel J %A Lee W %A Tokolyi A %A Persyn E %A Nath AP %A Marten J %A Petrovski S %A Roberts DJ %A Di Angelantonio E %A Danesh J %A Berton A %A Platt A %A Butterworth AS %A Soranzo N %A Parts L %A Inouye M %A Paul DS %A Davenport EE %J Am J Hum Genet %V 111 %N 8 %D 2024 Aug 8 %M 39053458 %F 11.043 %R 10.1016/j.ajhg.2024.06.017 %X Gene misexpression is the aberrant transcription of a gene in a context where it is usually inactive. Despite its known pathological consequences in specific rare diseases, we have a limited understanding of its wider prevalence and mechanisms in humans. To address this, we analyzed gene misexpression in 4,568 whole-blood bulk RNA sequencing samples from INTERVAL study blood donors. We found that while individual misexpression events occur rarely, in aggregate they were found in almost all samples and a third of inactive protein-coding genes. Using 2,821 paired whole-genome and RNA sequencing samples, we identified that misexpression events are enriched in cis for rare structural variants. We established putative mechanisms through which a subset of SVs lead to gene misexpression, including transcriptional readthrough, transcript fusions, and gene inversion. Overall, we develop misexpression as a type of transcriptomic outlier analysis and extend our understanding of the variety of mechanisms by which genetic variants can influence gene expression.