A guide to selecting high-performing antibodies for Prosaposin (UniProt ID: P07602) for use in western blot and immunoprecipitation.

Prosaposin functions as a regulator of lysosomal enzymatic activity and as a neuroprotective player when secreted. Here we have characterized nine Prosaposin commercial antibodies for western blot and immunoprecipitation 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.