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AB3330

Anti-PSMB5/MB1 antibody

5

(4 Reviews)

|

(49 Publications)

Rabbit Polyclonal PSMB5/MB1 antibody. Suitable for ICC, WB and reacts with Human, Cow, Mouse samples. Cited in 49 publications. Immunogen corresponding to Synthetic Peptide within Mouse Psmb5 aa 200 to C-terminus.

View Alternative Names

Proteasome subunit beta type-5, Macropain epsilon chain, Multicatalytic endopeptidase complex epsilon chain, Proteasome chain 6, Proteasome epsilon chain, Proteasome subunit X, Proteasome subunit beta-5, beta-5

4 Images
Immunocytochemistry - Anti-PSMB5/MB1 antibody (AB3330)
  • ICC

Supplier Data

Immunocytochemistry - Anti-PSMB5/MB1 antibody (AB3330)

Immunocytochemistry/Immunofluorescence analysis of PSMB5/MB1 (green) showing staining in the cytoplasm and nucleus of HeLa (Human epithelial adenocarcinoma cell line) cells (right) compared to a negative control without primary antibody (left). Formalin-fixed cells were permeabilized with 0.1% Triton X-100 in TBS for 5-10 minutes and blocked with 3% BSA-PBS for 30 minutes at room temperature. Cells were incubated with ab3330 in 3% BSA-PBS at a dilution of 1 : 100 and incubated overnight at 4°C in a humidified chamber. Cells were washed with PBST and incubated with a DyLight-conjugated secondary antibody in PBS at room temperature in the dark. F-actin (red) was stained with a fluorescent red phalloidin and nuclei (blue) were stained with Hoechst or DAPI. Images were taken at a magnification of 60x.

Immunocytochemistry - Anti-PSMB5/MB1 antibody (AB3330)
  • ICC

Supplier Data

Immunocytochemistry - Anti-PSMB5/MB1 antibody (AB3330)

Immunocytochemistry/Immunofluorescence analysis of PSMB5/MB1 (green) showing staining in the cytoplasm and nucleus of A431 (Human epidermoid carcinoma cell line) cells (right) compared to a negative control without primary antibody (left). Formalin-fixed cells were permeabilized with 0.1% Triton X-100 in TBS for 5-10 minutes and blocked with 3% BSA-PBS for 30 minutes at room temperature. Cells were incubated with ab3330 in 3% BSA-PBS at a dilution of 1 : 100 and incubated overnight at 4°C in a humidified chamber. Cells were washed with PBST and incubated with a DyLight-conjugated secondary antibody in PBS at room temperature in the dark. F-actin (red) was stained with a fluorescent red phalloidin and nuclei (blue) were stained with Hoechst or DAPI. Images were taken at a magnification of 60x.

Western blot - Anti-PSMB5/MB1 antibody (AB3330)
  • WB

Supplier Data

Western blot - Anti-PSMB5/MB1 antibody (AB3330)

All lanes:

Western blot - Anti-PSMB5/MB1 antibody (ab3330) at 1/1000 dilution

Lane 1:

NCI-H1299 (Human lung carcinoma cell line) whole cell lysate at 25 µg

Lane 2:

HeLa (Human epithelial adenocarcinoma cell line) whole cell lysate at 25 µg

Lane 3:

Mouse liver cell lysate at 25 µg

Predicted band size: 28 kDa

Observed band size: 23 kDa

false

Immunocytochemistry - Anti-PSMB5/MB1 antibody (AB3330)
  • ICC

Supplier Data

Immunocytochemistry - Anti-PSMB5/MB1 antibody (AB3330)

Immunocytochemistry/Immunofluorescence analysis of PSMB5/MB1 (green) showing staining in the cytoplasm and nucleus of BAEC (Bovine aortic endothelial cell line) cells (right) compared to a negative control without primary antibody (left). Formalin-fixed cells were permeabilized with 0.1% Triton X-100 in TBS for 5-10 minutes and blocked with 3% BSA-PBS for 30 minutes at room temperature. Cells were incubated with ab3330 in 3% BSA-PBS at a dilution of 1 : 100 and incubated overnight at 4°C in a humidified chamber. Cells were washed with PBST and incubated with a DyLight-conjugated secondary antibody in PBS at room temperature in the dark. F-actin (red) was stained with a fluorescent red phalloidin and nuclei (blue) were stained with Hoechst or DAPI. Images were taken at a magnification of 60x.

Key facts

Host species

Rabbit

Clonality

Polyclonal

Isotype

IgG

Carrier free

No

Reacts with

Mouse, Cow, Human

Applications

WB, ICC

applications

Immunogen

Synthetic Peptide within Mouse Psmb5 aa 200 to C-terminus. The exact immunogen used to generate this antibody is proprietary information.

O55234

Specificity

Detects proteasome PSMB5/MB1.

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "ICC" : {"fullname" : "Immunocytochemistry", "shortname":"ICC"}, "WB" : {"fullname" : "Western blot", "shortname":"WB"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Human": { "ICC-species-checked": "testedAndGuaranteed", "ICC-species-dilution-info": "1/10 - 1/200", "ICC-species-notes": "<p></p>", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1/500 - 1/5000", "WB-species-notes": "<p></p>" }, "Mouse": { "ICC-species-checked": "guaranteed", "ICC-species-dilution-info": "", "ICC-species-notes": "", "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "1/500 - 1/5000", "WB-species-notes": "<p></p>" }, "Cow": { "ICC-species-checked": "testedAndGuaranteed", "ICC-species-dilution-info": "1/10 - 1/200", "ICC-species-notes": "<p></p>", "WB-species-checked": "guaranteed", "WB-species-dilution-info": "", "WB-species-notes": "" } } }

Properties and storage information

Form
Liquid
Purification technique
Affinity purification Immunogen
Storage buffer
Constituents: PBS, 0.1% BSA
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
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle

Supplementary information

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

PSMB5 also known as MB1 or β5 is a subunit of the 20S proteasome complex with a molecular mass of approximately 28 kDa. This protein functions as a chymotrypsin-like peptidase that is important for protein degradation. It is expressed in various tissues throughout the body particularly in those with high protein turnover.
Biological function summary

PSMB5 plays a significant role in regulating protein homeostasis within the cell. It forms part of the core 20S proteasome complex where its enzymatic activity facilitates the breakdown of ubiquitinated proteins into smaller peptides. This protein degradation is essential for many cellular processes including the removal of damaged or misfolded proteins therefore maintaining cellular function.

Pathways

PSMB5 is integral to the ubiquitin-proteasome pathway which is important for protein recycling and quality control within cells. This pathway involves the tagging of proteins with ubiquitin and their subsequent degradation by the proteasome. PSMB5 interacts with other proteasome subunits like β1 and β2 contributing to a functional protein breakdown machinery. Dysregulation of this pathway can lead to the accumulation of unwanted proteins and affect cellular health.

Alterations in PSMB5 function have been implicated in the development of cancer and neurodegenerative diseases. Cancer cells often exhibit altered proteasome activity where PSMB5 may contribute to the survival and proliferation of these cells. In neurodegenerative diseases like Alzheimer's impairments in protein degradation pathways including PSMB5 can lead to protein aggregation and toxicity. Researchers are exploring how PSMB5 interacts with other proteins within these contexts to better understand its potential as a therapeutic target.

Product protocols

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

Target data

Component of the 20S core proteasome complex involved in the proteolytic degradation of most intracellular proteins. This complex plays numerous essential roles within the cell by associating with different regulatory particles. Associated with two 19S regulatory particles, forms the 26S proteasome and thus participates in the ATP-dependent degradation of ubiquitinated proteins. The 26S proteasome plays a key role in the maintenance of protein homeostasis by removing misfolded or damaged proteins that could impair cellular functions, and by removing proteins whose functions are no longer required. Associated with the PA200 or PA28, the 20S proteasome mediates ubiquitin-independent protein degradation. This type of proteolysis is required in several pathways including spermatogenesis (20S-PA200 complex) or generation of a subset of MHC class I-presented antigenic peptides (20S-PA28 complex). Within the 20S core complex, PSMB5 displays a chymotrypsin-like activity.
See full target information Psmb5

Publications (49)

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

Cancers 17: PubMed40507366

2025

LMP7-Specific Inhibitor M3258 Modulates the Tumor Microenvironment of Triple-Negative Breast Cancer and Inflammatory Breast Cancer.

Applications

Unspecified application

Species

Unspecified reactive species

Xuemei Xie,Jangsoon Lee,Ganiraju C Manyam,Troy Pearson,Gina Walter-Bausch,Manja Friese-Hamim,Sheng Zhao,Julia Jabs,Angela A Manginelli,Nadine Piske,Thomas Mrowiec,Corinna M Wolf,Bharat S Kuntal,Debu Tripathy,Jing Wang,Michael P Sanderson,Naoto T Ueno

Autophagy 21:1212-1227 PubMed39878121

2025

Limiting cap-dependent translation increases 20S proteasomal degradation and protects the proteomic integrity in autophagy-deficient skeletal muscle.

Applications

Unspecified application

Species

Unspecified reactive species

Han Dong,Yifan Lyu,Chien-Yung Huang,Shih-Yin Tsai

Molecular cancer therapeutics 23:1743-1760 PubMed39210605

2024

Immunoproteasome Activation Expands the MHC Class I Immunopeptidome, Unmasks Neoantigens, and Enhances T-cell Anti-Myeloma Activity.

Applications

Unspecified application

Species

Unspecified reactive species

Priyanka S Rana,James J Ignatz-Hoover,Chunna Guo,Amber L Mosley,Ehsan Malek,Yuriy Federov,Drew J Adams,James J Driscoll

Arteriosclerosis, thrombosis, and vascular biology 44:1346-1364 PubMed38660806

2024

Immunoproteasomal Inhibition With ONX-0914 Attenuates Atherosclerosis and Reduces White Adipose Tissue Mass and Metabolic Syndrome in Mice.

Applications

Unspecified application

Species

Unspecified reactive species

Frank H Schaftenaar,Andrea D van Dam,Gerjan de Bruin,Marie A C Depuydt,Jill de Mol,Jacob Amersfoort,Hidde Douna,Menno Meijer,Mara J Kröner,Peter J van Santbrink,Mireia N A Bernabé Kleijn,Gijs H M van Puijvelde,Bogdan I Florea,Bram Slütter,Amanda C Foks,Ilze Bot,Patrick C N Rensen,Johan Kuiper

Genetics in medicine : official journal of the American College of Medical Genetics 26:101120 PubMed38469793

2024

Biallelic USP14 variants cause a syndromic neurodevelopmental disorder.

Applications

Unspecified application

Species

Unspecified reactive species

Frédéric Ebstein,Xenia Latypova,Ka Ying Sharon Hung,Miguel A Prado,Byung-Hoon Lee,Sophie Möller,Martin Wendlandt,Barbara A Zieba,Laëtitia Florenceau,Virginie Vignard,Léa Poirier,Bérénice Toutain,Isabella Moroni,Charlotte Dubucs,Nicolas Chassaing,Judit Horvath,Holger Prokisch,Sébastien Küry,Stéphane Bézieau,Joao A Paulo,Daniel Finley,Elke Krüger,Daniele Ghezzi,Bertrand Isidor

Advances in rheumatology (London, England) 63:14 PubMed36949513

2023

The role of proteasome in muscle wasting of experimental arthritis.

Applications

Unspecified application

Species

Unspecified reactive species

Vivian Oliveira Nunes Teixeira,Bárbara Jonson Bartikoski,Rafaela Cavalheiro do Espirito Santo,Paulo Vinícius Gil Alabarse,Khetam Ghannan,Jordana Miranda Souza Silva,Lidiane Isabel Filippin,Fernanda Visioli,Lorena Martinez-Gamboa,Eugen Feist,Ricardo Machado Xavier

Frontiers in immunology 14:982720 PubMed36936919

2023

Immunogenic cell death triggered by impaired deubiquitination in multiple myeloma relies on dysregulated type I interferon signaling.

Applications

Unspecified application

Species

Unspecified reactive species

Zeinab Waad Sadiq,Annamaria Brioli,Ruba Al-Abdulla,Gonca Çetin,Jacqueline Schütt,Hugo Murua Escobar,Elke Krüger,Frédéric Ebstein

EMBO molecular medicine 15:e16244 PubMed36533294

2022

Microbiota dysbiosis influences immune system and muscle pathophysiology of dystrophin-deficient mice.

Applications

Unspecified application

Species

Unspecified reactive species

Andrea Farini,Luana Tripodi,Chiara Villa,Francesco Strati,Amanda Facoetti,Guido Baselli,Jacopo Troisi,Annamaria Landolfi,Caterina Lonati,Davide Molinaro,Michelle Wintzinger,Stefano Gatti,Barbara Cassani,Flavio Caprioli,Federica Facciotti,Mattia Quattrocelli,Yvan Torrente

Pharmacology 108:47-60 PubMed36423586

2022

Luteolin Attenuates Diabetic Myocardial Hypertrophy by Inhibiting Proteasome Activity.

Applications

Unspecified application

Species

Unspecified reactive species

Xiao-Bing Li,Mubarak Rekep,Jia-Hui Tian,Qian Wu,Mei Chen,Shuo Yang,Lu-Xuan Zhang,Gui-Ping Zhang,Yuan Qin,Xi-Yong Yu,Qin Xue,Ying-Hua Liu

Cell death & disease 13:975 PubMed36402750

2022

Inhibition of the immunoproteasome modulates innate immunity to ameliorate muscle pathology of dysferlin-deficient BlAJ mice.

Applications

Unspecified application

Species

Unspecified reactive species

A Farini,L Tripodi,C Villa,F Napolitano,F Strati,D Molinaro,F Facciotti,B Cassani,Y Torrente
View all publications

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