Head to head comparison of available commercial antibodies against Optineurin by immunoblot (Western blot), immunoprecipitation and immunofluorescence. The following study was funded in part by Genome Québec's Genomics Integration Program, awarded to the laboratory of Peter S. McPherson. This work is part of the ALS-Reproducible Antibody Platform (ALS-RAP), established as a public-private partnership by three prominent ALS charities - the ALS Association (USA), the Motor Neurone Disease Association (UK), and the ALS Society of Canada.