Anti-PSMC4 Antibody Picoband®

26S protease regulatory subunit 6B, also known as 26S proteasome AAA-ATPase subunit Rpt3, is an enzyme that in humans is encoded by the PSMC4 gene. 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. This gene encodes a member of the triple-A family of ATPases that is a component of the 19S regulatory subunit and plays a role in 26S proteasome assembly. The encoded protein interacts with gankyrin, a liver oncoprotein, and may also play a role in Parkinson's disease through interactions with synphilin-1. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene.

1. Dubiel, W., Ferrell, K., Rechsteiner, M. Tat-binding protein 7 is a subunit of the 26S protease. Biol. Chem. Hoppe Seyler 375: 237-240, 1994. 2. Ohana, B., Moore, P. A., Ruben, S. M., Southgate, C. D., Green, M. R., Rosen, C. A. The type 1 human immunodeficiency virus Tat binding protein is a transcriptional activator belonging to an additional family of evolutionarily conserved genes. Proc. Nat. Acad. Sci. 90: 138-142, 1993. 3. Sakao, Y., Kawai, T., Takeuchi, O., Copeland, N. G., Gilbert, D. J., Jenkins, N. A., Takeda, K., Akira, S. Mouse proteasomal ATPases Psmc3 and Psmc4: genomic organization and gene targeting. Genomics 67: 1-7, 2000.

At -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freezing and thawing.