Anti-PSMB2 Antibody Picoband™

Product Name

Anti-PSMB2 Antibody Picoband™

View all Proteasome 20S beta2 Antibodies

SKU/Catalog Number

A07697-1

Size

100 µg/vial

Form

Lyophilized

Description

Boster Bio Anti-PSMB2 Antibody Picoband™ catalog # A07697-1. Tested in ELISA, Flow Cytometry, IF, ICC, WB applications. This antibody reacts with Human.

Storage & Handling

At -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freezing and thawing.

Cite This Product

Anti-PSMB2 Antibody Picoband™ (Boster Biological Technology, Pleasanton CA, USA, Catalog # A07697-1)

Host

Rabbit

Contents

Each vial contains 4 mg Trehalose, 0.9 mg NaCl, 0.2 mg Na2HPO4.

Clonality

Polyclonal

Isotype

Rabbit IgG

Immunogen

E.coli-derived human PSMB2 recombinant protein (Position: M1-S201).

*Blocking peptide can be purchased. Costs vary based on immunogen length. Contact us for pricing.

Cross-reactivity

No cross-reactivity with other proteins.

Reactive Species

A07697-1 is reactive to PSMB2 in Human

Applications

A07697-1 is guaranteed for ELISA, Flow Cytometry, IF, ICC, WB Boster Guarantee

Observed Molecular Weight

23 kDa

Calculated molecular weight

49229 MW

Background of Proteasome 20S beta2

Proteasome subunit beta type-2 also known as 20S proteasome subunit beta-4 (based on systematic nomenclature) is a protein that in humans is encoded by the PSMB2 gene. The proteasome is a multicatalytic proteinase complex with a highly ordered ring-shaped 20S core structure. The core structure is composed of 4 rings of 28 non-identical subunits; 2 rings are composed of 7 alpha subunits and 2 rings are composed of 7 beta subunits. Proteasomes are distributed throughout eukaryotic cells at a high concentration and cleave peptides in an ATP/ubiquitin-dependent process in a non-lysosomal pathway. An essential function of a modified proteasome, the immunoproteasome, is the processing of class I MHC peptides. This gene encodes a member of the proteasome B-type family, also known as the T1B family, that is a 20S core beta subunit. Multiple alternatively spliced transcript variants encoding distinct isoforms have been found for this gene.

Antibody Validation

Boster validates all antibodies on WB, IHC, ICC, Immunofluorescence, and ELISA with known positive control and negative samples to ensure specificity and high affinity, including thorough antibody incubations.

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Reconstitution

Adding 0.2 ml of distilled water will yield a concentration of 500 µg/ml.

Assay Dilutions Recommendation

The recommendations below provide a starting point for assay optimization. The actual working concentration varies and should be decided by the user.

Western blot, 0.25-0.5 µg/ml, Human
Immunocytochemistry/Immunofluorescence, 5 µg/ml, Human
Flow Cytometry (Fixed), 1-3 µg/1x10⁶ cells, Human
Direct ELISA, 0.1-0.5 µg/ml, Human

Validation Images & Assay Conditions

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Figure 1. Western blot analysis of PSMB2 using anti-PSMB2 antibody (A07697-1).
Electrophoresis was performed on a 5-20% SDS-PAGE gel at 70V (Stacking gel) / 90V (Resolving gel) for 2-3 hours. The sample well of each lane was loaded with 30 ug of sample under reducing conditions.
Lane 1: human 293T whole cell lysates,
Lane 2: human Hela whole cell lysates,
Lane 3: human Jurkat whole cell lysates,
Lane 4: human placenta tissue lysates.
After electrophoresis, proteins were transferred to a nitrocellulose membrane at 150 mA for 50-90 minutes. Blocked the membrane with 5% non-fat milk/TBS for 1.5 hour at RT. The membrane was incubated with rabbit anti-PSMB2 antigen affinity purified polyclonal antibody (Catalog # A07697-1) at 0.5 μg/mL overnight at 4°C, then washed with TBS-0.1%Tween 3 times with 5 minutes each and probed with a goat anti-rabbit IgG-HRP secondary antibody at a dilution of 1:5000 for 1.5 hour at RT. The signal is developed using an Enhanced Chemiluminescent detection (ECL) kit (Catalog # EK1002) with Tanon 5200 system. A specific band was detected for PSMB2 at approximately 23 kDa. The expected band size for PSMB2 is at 23 kDa.

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Figure 2. IF analysis of PSMB2 using anti-PSMB2 antibody (A07697-1).
PSMB2 was detected in an immunocytochemical section of U2OS cells. Enzyme antigen retrieval was performed using IHC enzyme antigen retrieval reagent (AR0022) for 15 mins. The cells were blocked with 10% goat serum. And then incubated with 5 μg/mL rabbit anti-PSMB2 Antibody (A07697-1) overnight at 4°C. Cy3 Conjugated Goat Anti-Rabbit IgG (BA1032) was used as secondary antibody at 1:500 dilution and incubated for 30 minutes at 37°C. The section was counterstained with DAPI. Visualize using a fluorescence microscope and filter sets appropriate for the label used.

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Figure 3. Flow Cytometry analysis of Raji cells using anti-PSMB2 antibody (A07697-1).
Overlay histogram showing Raji cells stained with A07697-1 (Blue line). To facilitate intracellular staining, cells were fixed with 4% paraformaldehyde and permeabilized with permeabilization buffer. The cells were blocked with 10% normal goat serum. And then incubated with rabbit anti-PSMB2 Antibody (A07697-1, 1 μg/1x10⁶ cells) for 30 min at 20°C. DyLight®488 conjugated goat anti-rabbit IgG (BA1127, 5-10 μg/1x10⁶ cells) was used as secondary antibody for 30 minutes at 20°C. Isotype control antibody (Green line) was rabbit IgG (1 μg/1x10⁶) used under the same conditions. Unlabelled sample (Red line) was also used as a control.

Gene/Protein Information For PSMB2 (Source: Uniprot.org, NCBI)

Alternative Names

EC 3.4.25.1; HC7-I; Macropain subunit C7-I; MGC104215; MGC126885; multicatalytic endopeptidase complex subunit C7-1; Multicatalytic endopeptidase complex subunit C7-I; proteasome (prosome, macropain) subunit, beta type, 2; proteasome beta 2 subunit; Proteasome component C7-I; proteasome subunit beta type-2; proteasome subunit, beta type, 2 PSMB2 HC7-I proteasome 20S subunit beta 2 proteasome subunit beta type-2|macropain subunit C7-I|multicatalytic endopeptidase complex subunit C7-1|multicatalytic endopeptidase complex subunit C7-I|proteasome (prosome, macropain) subunit, beta type, 2|proteasome beta 2 subunit|proteasome component C7-I|proteasome subunit beta 2|proteasome subunit beta4|proteasome subunit, beta type, 2|testicular tissue protein Li 152

For more info on PSMB2, check out the PSMB2 Infographic

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In this infographic, you will see the following information for PSMB2: database IDs, superfamily, protein function, synonyms, molecular weight, chromosomal locations, tissues of expression, subcellular locations, post-translational modifications, and related diseases, research areas & pathways. If you want to see more information included, or would like to contribute to it and be acknowledged, please contact [email protected].

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