Home  >  Products  >  PSME2 (Proteasome Activator Complex Subunit 2, Proteasome Activator 28 Subunit beta, PA28beta, PA28b, Activator Of Multicatalytic Protease Subunit 2, 11S Regulator Complex Subunit beta, REG-beta)
PSME2 (Proteasome Activator Complex Subunit 2, Proteasome Activator 28 Subunit beta, PA28beta, PA28b, Activator Of Multicatalytic Protease Subunit 2, 11S Regulator Complex Subunit beta, REG-beta)

PSME2 (Proteasome Activator Complex Subunit 2, Proteasome Activator 28 Subunit beta, PA28beta, PA28b, Activator Of Multicatalytic Protease Subunit 2, 11S Regulator Complex Subunit beta, REG-beta)

Cat no: P9076-19C

Supplier: United States Biological
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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. The immunoproteasome contains an alternate regulator, referred to as the 11S regulator or PA28, that replaces the 19S regulator. Three subunits (alpha, beta and gamma) of the 11S regulator have been identified. PSME2 is the beta subunit of the 11S regulator, one of the two 11S subunits that is induced by gamma-interferon. Applications: Suitable for use in ELISA and Western Blot. Other applications not tested. Recommended Dilution: ELISA: 1:32,000 Western Blot: 0.5-1ug/ml, observed in Human Spleen lysates on ~27kD bands Optimal dilutions to be determined by the researcher. Storage and Stability: May be stored at 4 degrees C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
Catalogue number: P9076-19C
Reactivities: Human, Mouse, Rat, Canine
Hosts: Goat
Applications: ELISA, Western Blot
Size: 100ug
Form: Supplied as a liquid in Tris saline, 0.02% sodium azide, pH 7.3, 0.5% BSA.
P type: Pab
Purity: Purified by immunoaffinity chromatography.
References: 1. Brychcy M, Kuckelkorn U, Hausdorf G, Egerer K, Kloetzel PM, Burmester GR, Feist E. Anti-20S proteasome autoantibodies inhibit proteasome stimulation by proteasome activator PA28. Arthritis Rheum. 2006 Jul;54(7):2175-83.
Additional info: Recognizes human PSME2. Species sequence homology: Canine, mouse and rat.

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