AB226359

Anti-Proteasome 20S LMP7 antibody - C-terminal

Name: Anti-Proteasome 20S LMP7 antibody - C-terminal (ab226359) | Abcam
Brand: Abcam Limited
SKU: AB226359

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(1 Publication)

Rabbit Polyclonal Proteasome 20S LMP7 antibody. C-terminal. Suitable for IP and reacts with Human samples. Cited in 1 publication. Immunogen corresponding to Synthetic Peptide within Human PSMB8 aa 200-300.

View Alternative Names

LMP7, PSMB5i, RING10, Y2, PSMB8, Proteasome subunit beta type-8, Low molecular mass protein 7, Macropain subunit C13, Multicatalytic endopeptidase complex subunit C13, Proteasome component C13, Proteasome subunit beta-5i, Really interesting new gene 10 protein

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Supplier Data

Immunoprecipitation - Anti-Proteasome 20S LMP7 antibody - C-terminal (AB226359)

Proteasome 20S LMP7 was immunoprecipitated from Jurkat (human T cell leukemia cell line from peripheral blood) whole cell lysate (prepared using NETN lysis buffer; 20% of IP loaded) with ab226359 at 6 μg per reaction. Western blot was performed from the immunoprecipitate using ab226359 at 1 μg/ml.

Lane 1 : ab226359 IP in Jurkat whole cell lysate.

Lane 2 : Control IgG IP in Jurkat whole cell lysate.

Detection : Chemiluminescence with exposure time of 3 seconds.

All lanes:

Immunoprecipitation - Anti-Proteasome 20S LMP7 antibody - C-terminal (ab226359)

Predicted band size: 30 kDa

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Key facts

Host species

Rabbit

Clonality

Polyclonal

Isotype

IgG

Carrier free

Reacts with

Human

Applications

applications

Immunogen

Synthetic Peptide within Human PSMB8 aa 200-300. The exact immunogen used to generate this antibody is proprietary information.

P28062

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Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "IP" : {"fullname" : "Immunoprecipitation", "shortname":"IP"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "IP-species-checked": "testedAndGuaranteed", "IP-species-dilution-info": "2-10 µg/mg of lysate", "IP-species-notes": "<p></p>" }, "Chimpanzee": { "IP-species-checked": "predicted", "IP-species-dilution-info": "", "IP-species-notes": "" }, "Primates": { "IP-species-checked": "predicted", "IP-species-dilution-info": "", "IP-species-notes": "" } } }

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Product details

ab226359 has not performed satisfactorily when used for WB of Proteasome 20S LMP7 in crude preparations (e.g. whole cell lysate). This antibody can be used for WB of enriched (e.g. immunoprecipitated) sources of Proteasome 20S LMP7.

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Properties and storage information

Form

Liquid

Purification technique

Affinity purification Immunogen

Purification notes

ab226359 was affinity purified using an epitope specific to Proteasome 20S LMP7 immobilized on solid support.

Storage buffer

pH: 7 - 8 Preservative: 0.09% Sodium azide Constituents: Tris citrate/phosphate

Shipped at conditions

Blue Ice

Appropriate short-term storage duration

1-2 weeks

Appropriate short-term storage conditions

+4°C

Appropriate long-term storage conditions

+4°C

Aliquoting information

Upon delivery aliquot

Storage information

Avoid freeze / thaw cycle

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Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

Proteasome 20S LMP7 also known as β5i or PSMB8 is a subunit of the immunoproteasome. It weighs about 23 kDa and it is expressed predominantly in immune cells such as lymphocytes and macrophages. LMP7 is part of the proteasome 20S a cylindrical core particle involved in the degradation of ubiquitinated proteins. This process helps maintain protein homeostasis by breaking down misfolded and damaged proteins.

Biological function summary

The immunoproteasome in which LMP7 is an essential component plays an important role in the adaptive immune system. It influences the generation of antigenic peptides that are presented on MHC class I molecules. LMP7's expression is increased during immune responses particularly following gamma interferon (IFN-γ) stimulation contributing to the immune-mediated proteasome conformation. The immunoproteasome enables more efficient peptide processing enhancing antigen presentation to cytotoxic T lymphocytes.

Pathways

LMP7 is involved in the MHC class I antigen presentation pathway. This pathway allows the immune system to detect and respond to intracellular pathogens such as viruses. Additionally LMP7 interacts with TAP (Transporter associated with Antigen Processing) and other proteasome subunits to ensure effective peptide processing for loading onto MHC class I molecules. Through this involvement it closely links to immune signaling and cellular stress responses.

Research shows that LMP7 connects to autoimmune diseases and inflammatory disorders such as lupus and rheumatoid arthritis. Dysregulation of LMP7 expression or activity can lead to improper immune responses contributing to disease pathogenesis. Furthermore LMP7 impacts the degradation of specific proteins relevant to these conditions. For example it works alongside other proteasome subunits like LMP2 and MECL-1 in modulating the inflammatory response which can exacerbate autoimmune disease symptoms.

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Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Visit the General protocols
Visit the Troubleshooting

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Target data

The proteasome is a multicatalytic proteinase complex which is characterized by its ability to cleave peptides with Arg, Phe, Tyr, Leu, and Glu adjacent to the leaving group at neutral or slightly basic pH. The proteasome has an ATP-dependent proteolytic activity. This subunit is involved in antigen processing to generate class I binding peptides. Replacement of PSMB5 by PSMB8 increases the capacity of the immunoproteasome to cleave model peptides after hydrophobic and basic residues. Involved in the generation of spliced peptides resulting from the ligation of two separate proteasomal cleavage products that are not contiguous in the parental protein (PubMed : 27049119). Acts as a major component of interferon gamma-induced sensitivity. Plays a key role in apoptosis via the degradation of the apoptotic inhibitor MCL1. May be involved in the inflammatory response pathway. In cancer cells, substitution of isoform 1 (E2) by isoform 2 (E1) results in immunoproteasome deficiency. Required for the differentiation of preadipocytes into adipocytes.

See full target information PSMB8

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Publications (1)

Recent publications for all applications. Explore the full list and refine your search

Nature communications 12:1172 PubMed33608523

2021

20S proteasomes secreted by the malaria parasite promote its growth.

Applications

Unspecified application

Species

Unspecified reactive species

Elya Dekel,Dana Yaffe,Irit Rosenhek-Goldian,Gili Ben-Nissan,Yifat Ofir-Birin,Mattia I Morandi,Tamar Ziv,Xavier Sisquella,Matthew A Pimentel,Thomas Nebl,Eugene Kapp,Yael Ohana Daniel,Paula Abou Karam,Daniel Alfandari,Ron Rotkopf,Shimrit Malihi,Tal Block Temin,Debakshi Mullick,Or-Yam Revach,Ariel Rudik,Nir S Gov,Ido Azuri,Ziv Porat,Giulia Bergamaschi,Raya Sorkin,Gijs J L Wuite,Ori Avinoam,Teresa G Carvalho,Sidney R Cohen,Michal Sharon,Neta Regev-Rudzki

View all publications

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Product promise

We are committed to supporting your work with high-quality reagents, and we're here for you every step of the way. In the unlikely event that one of our products does not perform as expected, you're protected by our Product Promise.

For full details, please see our Terms & Conditions

Please note: All products are 'FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC OR THERAPEUTIC PROCEDURES'.

For licensing inquiries, please contact partnerships@abcam.com

Anti-Proteasome 20S LMP7 antibody - C-terminal

Immunoprecipitation - Anti-Proteasome 20S LMP7 antibody - C-terminal (AB226359)

Key facts

Host species

Clonality

Isotype

Carrier free

Reacts with

Applications

Immunogen

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Reactivity data

Product details

Properties and storage information

Form

Purification technique

Purification notes

Storage buffer

Shipped at conditions

Appropriate short-term storage duration

Appropriate short-term storage conditions

Appropriate long-term storage conditions

Aliquoting information

Storage information

Supplementary information

Biological function summary

Pathways

Product protocols

Target data

Publications (1)

Product promise