A guide to selecting high-performing antibodies for Optineurin (UniProt ID: Q96CV9) for use in western blot, immunoprecipitation, and immunofluorescence

Optineurin (OPTN) is a multifunctional cytoplasmic adaptor protein implicated in maintaining neuronal homeostasis through its roles in selective autophagy, vesicle trafficking, and regulation of inflammatory signaling. Mutations in the <i>OPTN</i> gene are causally linked to several neurodegenerative diseases, including amyotrophic lateral sclerosis (ALS) and primary open-angle glaucoma. Here we have eight optineurin commercial antibodies for western blot, immunoprecipitation, and immunofluorescence using a standardized experimental protocol based on comparing read-outs in knockout cell lines and isogenic parental controls. These studies are part of a larger, collaborative initiative seeking to address antibody reproducibility issues by characterizing commercially available antibodies for human proteins and publishing the results openly as a resource for the scientific community. While the use of antibodies and protocols vary between laboratories, we encourage readers to use this report as a guide to select the most appropriate antibodies for their specific needs.