Proteasome subunit beta 1i (PSMB9) is one of the inducible beta subunits of the immuno 20S proteasome that catalyzes branched amino acid-preferred activity by cleaving after branched residuess of polypeptides. The 20S proteasome has a barrel-like structure containing four stacked alphabetabetaalpha rings. Each alpha or beta ring is composed of seven different proteins. beta1, beta2 and beta5 have peptidase activities that hydrolyze proteins. The corresponding catalytic subunits in immunoproteasomes are beta1i, beta2i and beta5i subunits. The 20S proteasome can assemble with other protein complexes that activate the 20S proteasome to degrade proteins.
Molecular Weight:
IgG
Buffer:
PBS with 0.02% sodium azide, 50% glycerol, pH7.3
Source:
Rabbit
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