%0 Journal Article %T A proteomics approach to quantify protein levels following RNA interference: case study with glutathione transferase superfamily from the model metazoan Caenorhabditis elegans. %A Lacourse EJ %A Perally S %A Hernandez-Viadel M %A Wright HA %A Brophy PM %J J Proteome Res %V 7 %N 8 %D Aug 2008 %M 18582093 %F 5.37 %R 10.1021/pr8001035 %X Loss-of-function phenotypic analysis via interference RNA (RNAi) technology is a revolutionary approach to assigning gene function. While transcript-based methodologies commonly validate RNAi gene suppression investigations, protein-based validation is less developed. This report illustrates the potential for two-dimensional sodium dodecyl sulfate polyacrylamide gel electrophoresis (2-DE) and gel analysis to quantify protein levels following RNAi. This case study involves three glutathione transferase (GST) genes targeted by RNAi from the model organism Caenorhabditis elegans.