Anti-TAPA1/Cd81 Antibody Picoband™

Product Name

Anti-TAPA1/Cd81 Antibody Picoband™

View all CD81 Antibodies

SKU/Catalog Number

A01281-3

Size

100 μg/vial

Form

Lyophilized

Description

Boster Bio Anti-TAPA1/Cd81 Antibody Picoband™ catalog # A01281-3. Tested in ELISA, IF, IHC, WB applications. This antibody reacts with Mouse, Rat.

Storage & Handling

Store 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 freeze-thaw cycles.

Cite This Product

Anti-TAPA1/Cd81 Antibody Picoband™ (Boster Biological Technology, Pleasanton CA, USA, Catalog # A01281-3)

Host

Rabbit

Contents

Each vial contains 4mg Trehalose, 0.9mg NaCl, 0.2mg Na₂HPO₄, 0.05mg NaN₃.

Clonality

Polyclonal

Isotype

Rabbit IgG

Immunogen

E. coli-derived mouse TAPA1 recombinant protein (Position: K116-K201).

*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

A01281-3 is reactive to CD81 in Mouse, Rat

Applications

A01281-3 is guaranteed for ELISA, IF, IHC, WB Boster Guarantee

Observed Molecular Weight

22 kDa

Calculated molecular weight

25.809kDa

Background of CD81

CD81 molecule, also known as CD81 (Cluster of Differentiation 81), is a protein which in humans is encoded by the CD81 gene. The protein encoded by this gene is a member of the transmembrane 4 superfamily, also known as the tetraspanin family. Most of these members are cell-surface proteins that are characterized by the presence of four hydrophobic domains. The proteins mediate signal transduction events that play a role in the regulation of cell development, activation, growth and motility. This encoded protein is a cell surface glycoprotein that is known to complex with integrins. This protein appears to promote muscle cell fusion and support myotube maintenance. Also it may be involved in signal transduction. This gene is localized in the tumor-suppressor gene region and thus it is a candidate gene for malignancies. Two transcript variants encoding different 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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Reconsitution

Add 0.2ml of distilled water will yield a concentration of 500ug/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, 0.1-0.5μg/ml
Immunohistochemistry (Paraffin-embedded Section), 2-5μg/ml
Immunofluorescence, 5μg/ml
Direct ELISA, 0.1-0.5μg/ml

Validation Images & Assay Conditions

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Figure 1. Western blot analysis of TAPA1/CD81 using anti-TAPA1/CD81 antibody (A01281-3).
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: rat brain tissue lysates,
Lane 2: mouse ovary tissue lysates,
Lane 3: mouse brain tissue lysates,
Lane 4: mouse NIH/3T3 whole cell 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-TAPA1/CD81 antigen affinity purified polyclonal antibody (Catalog # A01281-3) 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 TAPA1/CD81 at approximately 22 kDa. The expected band size for TAPA1/CD81 is at 26 kDa.

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Figure 2. IHC analysis of TAPA1/CD81 using anti-TAPA1/CD81 antibody (A01281-3).
TAPA1/CD81 was detected in a paraffin-embedded section of rat liver tissue. Heat mediated antigen retrieval was performed in EDTA buffer (pH 8.0, epitope retrieval solution). The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 2 μg/ml rabbit anti-TAPA1/CD81 Antibody (A01281-3) overnight at 4°C. Peroxidase Conjugated Goat Anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37°C. The tissue section was developed using HRP Conjugated Rabbit IgG Super Vision Assay Kit (Catalog # SV0002) with DAB as the chromogen.

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Figure 3. IF analysis of TAPA1/CD81 using anti-TAPA1/CD81 antibody (A01281-3).
TAPA1/CD81 was detected in a paraffin-embedded section of mouse liver tissue. Heat mediated antigen retrieval was performed in EDTA buffer (pH 8.0, epitope retrieval solution). The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 5 μg/mL rabbit anti-TAPA1/CD81 Antibody (A01281-3) 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 4. IF analysis of TAPA1/CD81 using anti-TAPA1/CD81 antibody (A01281-3).
TAPA1/CD81 was detected in a paraffin-embedded section of rat liver tissue. Heat mediated antigen retrieval was performed in EDTA buffer (pH 8.0, epitope retrieval solution). The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 5 μg/mL rabbit anti-TAPA1/CD81 Antibody (A01281-3) 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.

Gene/Protein Information For CD81 (Source: Uniprot.org, NCBI)

Alternative Names

CD81 antigen (target of antiproliferative 1); CD81 antigen; CD81 molecule; CD81; CVID6; TAPA1; TAPA-1; Target of the antiproliferative 1; Tetraspanin-28; TSPAN28; Tspan-28; tspan-28,26 kDa cell surface protein TAPA-1; TSPAN28S5.7 CD81 CVID6, S5.7, TAPA1, TSPAN28 CD81 molecule CD81 antigen|26 kDa cell surface protein TAPA-1|CD81 antigen (target of antiproliferative antibody 1)|tetraspanin-28|tspan-28

For more info on CD81, check out the CD81 Infographic

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In this infographic, you will see the following information for CD81: 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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