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|Product Name||PSMB7, 44-277aa, Human|
|Amino Acid Sequence||MGSSHHHHHH SSGLVPRGSH MTTIAGVVYK DGIVLGADTR ATEGMVVADK NCSKIHFISP NIYCCGAGTA ADTDMTTQLI SSNLELHSLS TGRLPRVVTA NRMLKQMLFR YQGYIGAALV LGGVDVTGPH LYSIYPHGST DKLPYVTMGS GSLAAMAVFE DKFRPDMEEE EAKNLVSEAI AAGIFNDLGS GSNIDLCVIS KNKLDFLRPY TVPNKKGTRL GRYRCEKGTT AVLTEKITPL EIEVLEETVQ TMDTS|
|Background||PSMB7, also known as proteasome subunit beta type-7, is a multicatalytic proteinase complex with a highly ordered ring-shaped 20S core structure. The core structure 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. 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. This gene encodes a member of the proteasome B-type family, also known as the T1B family that is a 20S core beta subunit in the proteasome. Expression of this catalytic subunit is downregulated by gamma interferon and proteolytic processing is required to generate a mature subunit. This subunit is not present in the immunoproteasome and is replaced by catalytic subunit 2i. Recombinant human PSMB7 protein, fused to His-tag at N-terminus, was expressed in E.coli and purified by using conventional chromatography.|
|Concentration||0.5 mg/ml (determined by Bradford assay)|
|Form||Liquid, in 20mM Tris-HCl buffer (pH8.0) containing 20% glycerol, 1mM DTT, 0.1M NaCl, 0.1mM PMSF|
|Intended Use||For Research Use Only|
|Molecular Weight||38.1 kDa (336aa), confirmed by MALDI-TOF|
|NCBI Accession #||NP_002790|
|Purity||> 80% by SDS-PAGE|
|References||Wang X., et al. (2007) Biochemistry. 46:3553-3565
Rho J.H., et al. (2008) J. Proteome Res. 7:2959-2972
|Storage||Can be stored at +4C short term (1-2 weeks). For long term storage, aliquot and store at -20C or -70C. Avoid repeated freezing and thawing cycles.|
|Synonyms||Proteasome subunit beta type-7, Macropain chain Z, Multicatalytic endopeptidase complex chain Z, Proteasome subunit Z, Proteasome subunit beta type 7|
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