SKU: 46597220893

PSMB5 Rabbit Polyclonal Antibody

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Description

PSMB5 Rabbit Polyclonal AntibodyProduct Specification Host Rabbit Antigen PSMB5 Synonyms Proteasome subunit beta type 5; Macropain epsilon chain; Multicatalytic endopeptidase complex epsilon chain; Proteasome chain 6; Proteasome epsilon chain; Proteasome subunit MB1; LMPX; MB1; X Immunogen Synthetic Peptide Location Cytoplasm, Nucleus Accession P28074 Antibody Type Polyclonal antibody Isotype IgG Application WB, IHC P Reactivity Hu, Ms, Rt, Mk Positive Sample K562, RPMI 8226, MCF7,

Product Specification


Host Rabbit
Antigen PSMB5
Synonyms Proteasome subunit beta type-5; Macropain epsilon chain; Multicatalytic endopeptidase complex epsilon chain; Proteasome chain 6; Proteasome epsilon chain; Proteasome subunit MB1; LMPX; MB1; X
Immunogen Synthetic Peptide
Location Cytoplasm, Nucleus
Accession P28074
Antibody Type Polyclonal antibody
Isotype IgG
Application WB, IHC-P
Reactivity Hu, Ms, Rt, Mk
Positive Sample K562, RPMI-8226, MCF7, T47D, Neuro-2a, mouse liver, COS-7
Purification Immunogen Affinity
Concentration 0.5 mg/ml
Conjugation Unconjugated
Physical Appearance Liquid
Storage Buffer

PBS, 40% Glycerol, 0.05% BSA, 0.03% Proclin 300

Stability & Storage

12 months from date of receipt / reconstitution, -20 °C as supplied

Dilution


application dilution species
WB 1:2000 Hu, Ms, Mk
IHC-P 1:200 Hu, Ms, Rt

Background

PSMB5, also known as proteasome subunit beta type-5 or the X subunit of the 20S core particle, is a critical catalytic component of the 26S proteasome complex responsible for intracellular protein degradation via the ubiquitin-proteasome pathway. As one of the three distinct beta subunits possessing proteolytic activity within the 20S core, PSMB5 specifically exhibits chymotrypsin-like activity, cleaving peptide bonds adjacent to hydrophobic amino acid residues, which is essential for maintaining cellular homeostasis by removing damaged, misfolded, or regulatory proteins. This subunit plays a pivotal role in antigen processing for MHC class I presentation, thereby influencing immune surveillance, and serves as the primary molecular target for bortezomib and other proteasome inhibitor drugs used clinically to treat multiple myeloma and mantle cell lymphoma; furthermore, under inflammatory conditions induced by interferon-gamma, PSMB5 can be replaced by its inducible homolog LMP7 (PSMB8) to form the immunoproteasome, which alters cleavage specificity to optimize the generation of antigenic peptides for immune recognition.

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SKU: 46597220893

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