» Articles » PMID: 36993377

Aenmd: Annotating Escape from Nonsense-mediated Decay for Transcripts with Protein-truncating Variants

Overview
Journal bioRxiv
Date 2023 Mar 30
PMID 36993377
Authors
Affiliations
Soon will be listed here.
Abstract

DNA changes that cause premature termination codons (PTCs) represent a large fraction of clinically relevant pathogenic genomic variation. Typically, PTCs induce a transcript's degradation by nonsense-mediated mRNA decay (NMD) and render such changes loss-of-function alleles. However, certain PTC-containing transcripts escape NMD and can exert dominant-negative or gain-of-function (DN/GOF) effects. Therefore, systematic identification of human PTC-causing variants and their susceptibility to NMD contributes to the investigation of the role of DN/GOF alleles in human disease. Here we present aenmd, a software for annotating PTC-containing transcript-variant pairs for predicted escape from NMD. aenmd is user-friendly and self-contained. It offers functionality not currently available in other methods and is based on established and experimentally validated rules for NMD escape; the software is designed to work at scale, and to integrate seamlessly with existing analysis workflows. We applied aenmd to variants in the gnomAD, Clinvar, and GWAS catalog databases and report the prevalence of human PTC-causing variants in these databases, and the subset of these that could exert DN/GOF effects via NMD escape. Availability and implementation: aenmd is implemented in the R programming language. Code is available on GitHub as an R package (github.com/kostkalab/aenmd.git), and as a containerized command-line interface (github.com/kostkalab/aenmd_cli.git).

References
1.
Gehring N, Neu-Yilik G, Schell T, Hentze M, Kulozik A . Y14 and hUpf3b form an NMD-activating complex. Mol Cell. 2003; 11(4):939-49. DOI: 10.1016/s1097-2765(03)00142-4. View

2.
Inoue K, Ohyama T, Sakuragi Y, Yamamoto R, Inoue N, Yu L . Translation of SOX10 3' untranslated region causes a complex severe neurocristopathy by generation of a deleterious functional domain. Hum Mol Genet. 2007; 16(24):3037-46. DOI: 10.1093/hmg/ddm262. View

3.
Hunt S, Moore B, Amode R, Armean I, Lemos D, Mushtaq A . Annotating and prioritizing genomic variants using the Ensembl Variant Effect Predictor-A tutorial. Hum Mutat. 2021; 43(8):986-997. PMC: 7613081. DOI: 10.1002/humu.24298. View

4.
Frischmeyer P, Dietz H . Nonsense-mediated mRNA decay in health and disease. Hum Mol Genet. 1999; 8(10):1893-900. DOI: 10.1093/hmg/8.10.1893. View

5.
Lykke-Andersen S, Jensen T . Nonsense-mediated mRNA decay: an intricate machinery that shapes transcriptomes. Nat Rev Mol Cell Biol. 2015; 16(11):665-77. DOI: 10.1038/nrm4063. View