Anti-Rpn3 Antibody

This rabbit polyclonal antibody specifically recognizes Rpn3, a non-ATPase subunit of the 19S regulatory lid subcomplex of the Saccharomyces cerevisiae 26S proteasome. Rpn3 contributes to substrate recognition and ubiquitin-dependent protein turnover, and it is commonly tracked as a marker of proteasome biogenesis and lid assembly. Supplied by Antibodies.com as an unconjugated IgG reagent in a 100 µl liquid format, this antibody supports western blot and immunoprecipitation workflows on yeast whole-cell extracts and native lysates. Aliquot upon receipt to limit freeze-thaw cycles, store at -20 °C, and keep the working stock refrigerated to preserve activity. The polyclonal host response provides broader epitope coverage across Rpn3, which is helpful when probing conformational intermediates of the 19S lid during proteasome assembly studies in budding yeast.