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Key Documents

HPA026322

Sigma-Aldrich

Anti-PSMB2 antibody produced in rabbit

Prestige Antibodies® Powered by Atlas Antibodies, affinity isolated antibody, buffered aqueous glycerol solution, Ab1

Synonym(s):

Anti-Macropain subunit C7-I, Anti-Multicatalytic endopeptidase complex subunit C7-I, Anti-Proteasome component C7-I, Anti-Proteasome subunit beta type-2

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About This Item

UNSPSC Code:
12352203
Human Protein Atlas Number:
NACRES:
NA.43

biological source

rabbit

conjugate

unconjugated

antibody form

affinity isolated antibody

antibody product type

primary antibodies

clone

polyclonal

product line

Prestige Antibodies® Powered by Atlas Antibodies

form

buffered aqueous glycerol solution

species reactivity

rat, human, mouse

technique(s)

immunoblotting: 0.04-0.4 μg/mL
immunofluorescence: 0.25-2 μg/mL
immunohistochemistry: 1:20-1:50

immunogen sequence

LLLAGYDEHEGPALYYMDYLAALAKAPFAAHGYGAFLTLSILDRYYTPTISRERAVELLRKCLEELQKRFILNLPTF

UniProt accession no.

shipped in

wet ice

storage temp.

−20°C

target post-translational modification

unmodified

Gene Information

human ... PSMB2(5690)

General description

Proteasome subunit β-2 (PSMB2) is a catalytic subunit of the proteasome complex. The gene encoding it is localized on human chromosome 1p34.2.

Immunogen

Recombinant Protein Epitope Signature Tag (PrEST) antigen.

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 β-2 (PSMB2) has a trypsin-like activity. It has a role in double-strand break repair and associates with homeobox A2 (HOXA2). Overexpression of the protein in human cells has been shown to reduce homologous recombination. It may trigger the loading of β subunit onto a rings in the proteasome.

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 APREST76712

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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The over-expression of the ?2 catalytic subunit of the proteasome decreases homologous recombination and impairs DNA double-strand break repair in human cells.
Journal of Biomedicine and Biotechnology, 2011, 757960-757960 (2011)
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
Genetic relationships of the genes encoding the human proteasome beta subunits and the proteasome PA28 complex.
McCusker D
Genomics, 45(2), 362-367 (1997)
Differential intra-proteasome interactions involving standard and immunosubunits.
Jayarapu K and Griffin TA
Biochemical and Biophysical Research Communications, 358(3), 867-872 (2007)
The homeodomain transcription factor Hoxa2 interacts with and promotes the proteasomal degradation of the E3 ubiquitin protein ligase RCHY1.
Bergiers L
PLoS ONE, 8(11), e80387-e80387 (2013)

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