Differential gene expression analysis

Peter Kilfeather

Published: 2024-02-07 DOI: 10.17504/protocols.io.5jyl8p7k9g2w/v1

Abstract

Differential gene expression analysis from Kilfeather, Khoo et al., 2024

Steps

Protocol

1.

Differential gene expression analysis in TRAP samples (including calculation of gene enrichment and depletion, relative to tissue homogenate RNA) was performed using DESeq2 (v1.36.0, RRID:SCR_015687) in R (v4.2.1, RRID:SCR_001905) with Bioconductor (v3.15, RRID:SCR_006442). Adaptive shrinkage of log fold change estimates was performed using ashr. The following settings were changed from defaults: minReplicatesForReplace = Inf, cooksCutoff = Inf, filterFun = ihw, lfcThreshold = log2(1.05). Genes were classed as significantly differentially expressed with an FDR-adjust P value < 0.01. Protein-protein interactions were obtained using STRINGdb (version 11) with a minimum confidence threshold of 0.4.

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