Rabbit anti Human PSMD9 antibody recognizes PSMD9, also known as 26S proteasome non-ATPase regulatory subunit 9 or 26S proteasome regulatory subunit p27.
The 26S proteasome is a multicatalytic proteinase complex with a highly ordered structure composed of 2 complexes, a 20S core and a 19S regulator. The 20S core is composed of 4 rings of 28 non-identical subunits; 2 rings are composed of 7 alpha subunits and 2 rings are composed of 7 beta subunits. The 19S regulator is composed of a base, which contains 6 ATPase subunits and 2 non-ATPase subunits, and a lid, which contains up to 10 non-ATPase subunits. Proteasomes are distributed throughout eukaryotic cells at a high concentration and cleave peptides in an ATP/ubiquitin-dependent process in a non-lysosomal pathway. An essential function of a modified proteasome, the immunoproteasome, is the processing of class I MHC peptides. PSMD9 gene encodes a non-ATPase subunit of the 19S regulator. Three transcript variants encoding two different isoforms have been found for PSMD9 (provided by RefSeq, May 2012).
Rabbit anti Human PSMD9 antibody detects a band of 33 kDa. The antibody has been extensively validated for western blotting using whole cell lysates.
