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Key Documents

HPA029635

Sigma-Aldrich

Anti-PSMB1 antibody produced in rabbit

enhanced validation

affinity isolated antibody, buffered aqueous glycerol solution, ab1

Synonym(s):

Anti-HC5, Anti-PMSB1, Anti-proteasome (prosome, macropain) subunit, β type, 1

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About This Item

UNSPSC Code:
12352203
Human Protein Atlas Number:

biological source

rabbit

Quality Level

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

form

buffered aqueous glycerol solution

species reactivity

human

enhanced validation

independent
Learn more about Antibody Enhanced Validation

technique(s)

immunoblotting: 0.04-0.4 μg/mL
immunofluorescence: 0.25-2 μg/mL
immunohistochemistry: 1:500-1:1000

immunogen sequence

YQRDSFKAGGSASAMLQPLLDNQVGFKNMQNVEHVPLSLDRAMRLVKDVFISAAERDVYTGDALRICIVTKEGIREETVSLRKD

UniProt accession no.

shipped in

wet ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... PSMB1(5689)

General description

Proteasome subunit beta type-1 (PSMB1) is part of the 20S proteasome subunit complex. PSMB1 is mapped to human chromosome 6q27.

Immunogen

proteasome (prosome, macropain) subunit, beta type, 1 recombinant protein epitope signature tag (PrEST)

Application

All Prestige Antibodies Powered by Atlas Antibodies are developed and validated by the Human Protein Atlas (HPA) project and as a result, are supported by the most extensive characterization in the industry.

The Human Protein Atlas project can be subdivided into three efforts: Human Tissue Atlas, Cancer Atlas, and Human Cell Atlas. The antibodies that have been generated in support of the Tissue and Cancer Atlas projects have been tested by immunohistochemistry against hundreds of normal and disease tissues and through the recent efforts of the Human Cell Atlas project, many have been characterized by immunofluorescence to map the human proteome not only at the tissue level but now at the subcellular level. These images and the collection of this vast data set can be viewed on the Human Protein Atlas (HPA) site by clicking on the Image Gallery link. We also provide Prestige Antibodies® protocols and other useful information.

Biochem/physiol Actions

Proteasome subunit beta type-1 (PSMB1) phosphorylation is critical for its localization in nucleus. Theophylline (THP) and 1,3-dinitrobenzene (DNB) regulates expression of PSMB1 and other proteins in the ubiquitin-proteasome pathway. Polymorphism in PSMB1 impacts the protease activity of proteasomes and improves effect of the anti-cancer drug, bortezomib.

Features and Benefits

Prestige Antibodies® are highly characterized and extensively validated antibodies with the added benefit of all available characterization data for each target being accessible via the Human Protein Atlas portal linked just below the product name at the top of this page. The uniqueness and low cross-reactivity of the Prestige Antibodies® to other proteins are due to a thorough selection of antigen regions, affinity purification, and stringent selection. Prestige antigen controls are available for every corresponding Prestige Antibody and can be found in the linkage section.

Every Prestige Antibody is tested in the following ways:
  • IHC tissue array of 44 normal human tissues and 20 of the most common cancer type tissues.
  • Protein array of 364 human recombinant protein fragments.

Linkage

Corresponding Antigen APREST77253

Physical form

Solution in phosphate-buffered saline, pH 7.2, containing 40% glycerol and 0.02% sodium azide.

Legal Information

Prestige Antibodies is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

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Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Role of nuclear localization of PSMB1 in transcriptional activation
Yamauchi J, et al.
Bioscience, Biotechnology, and Biochemistry, 77(8), 1785-1787 (2013)
Proteasome Subunit Beta Type 1 P11A polymorphism is a new prognostic marker in multiple myeloma
Varga G, et al.
Clinical Lymphoma, Myeloma, & Leukemia, 17(11), 734-742 (2017)
The genes for the alpha-type HC3 (PMSA2) and beta-type HC5 (PMSB1) subunits of human proteasomes map to chromosomes 6q27 and 7p12-p13 by fluorescence in situ hybridization.
K Okumura et al.
Genomics, 27(2), 377-379 (1995-05-20)
Muhammad Saad Khilji et al.
American journal of physiology. Endocrinology and metabolism, 318(6), E892-E900 (2020-04-08)
Proinsulin is a misfolding-prone protein, and its efficient breakdown is critical when β-cells are confronted with high-insulin biosynthetic demands, to prevent endoplasmic reticulum stress, a key trigger of secretory dysfunction and, if uncompensated, apoptosis. Proinsulin degradation is thought to be
Mark W Tengowski et al.
Biology of reproduction, 76(1), 149-163 (2006-09-22)
Theophylline (THP) and 1,3-dinitrobenzene (DNB) are thought to induce infertility by incapacitating the nurturing Sertoli cells and causing germ cell apoptosis in the testicular seminiferous epithelium, respectively. We hypothesized that THP and DNB exposure would alter the expression of the

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