Anti-Thrombospondin 2/THBS2 Antibody


SKU PA1417
Size 100μg/vial
Reactivity Human, Mouse, Rat
Clonality Polyclonal
Host Rabbit
Ig Isotype N/A
Applications Flow Cytometry, IHC-P, IHC-F, ICC, WB

Overview

Product Name Anti-Thrombospondin 2/THBS2 Antibody
SKU/Catalog Number PA1417
Storage & Handling At -20°C for one year. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for a longer time.Avoid repeated freezing and thawing.
Size 100μg/vial
Description Rabbit IgG polyclonal antibody for Thrombospondin-2(THBS2) detection. Tested with WB, IHC-P, IHC-F, ICC, FCM in Human;Mouse;Rat.
Cite This Product Anti-Thrombospondin 2/THBS2 Antibody (Boster Biological Technology, Pleasanton CA, USA, Catalog # PA1417)
Host Rabbit
Contents/Buffer Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg Thimerosal, 0.05mg NaN3.
Form Lyophilized
Immunogen A synthetic peptide corresponding to a sequence in the middle region of human Thrombospondin 2(637-655aa EAAKTEKQVCEPENPCKDK), different from the mouse sequence by two amino acids.
Reactivity Human, Mouse, Rat

Assay Details

Assay Dilutions Overview

Concentration: Add 0.2ml of distilled water will yield a concentration of 500ug/ml.
Western blot, 0.1-0.5μg/ml, Human, Mouse, Rat
Immunohistochemistry(Paraffin-embedded Section), 0.5-1μg/ml, Human
Immunohistochemistry(Frozen Section), 0.5-1μg/ml, Human
Immunocytochemistry, 0.5-1μg/ml, Human
Flow Cytometry, 1-3μg/1x106 cells, Human

Boster's Secondary Antibodies And IHC, WB Kits

The following reagents are used to generate the images below.

Boster recommends Enhanced Chemiluminescent Kit with anti-Rabbit IgG (EK1002) for Western blot, and HRP Conjugated anti-Rabbit IgG Super Vision Assay Kit (SV0002-1) for IHC(P), IHC(F) and ICC.

Images And Assay Conditions

Figure 3. IHC analysis of Thrombospondin 2/THBS2 using anti- Thrombospondin 2/THBS2 antibody (PA1417).
Thrombospondin 2/THBS2 was detected in paraffin-embedded section of human placenta tissues. Heat mediated antigen retrieval was performed in citrate buffer (pH6, epitope retrieval solution) for 20 mins. The tissue section was blocked with 10% goat serum. The tissue section was then incubated with 1μg/ml rabbit anti- Thrombospondin 2/THBS2 Antibody (PA1417) overnight at 4°C. Biotinylated goat anti-rabbit IgG was used as secondary antibody and incubated for 30 minutes at 37°C. The tissue section was developed using Strepavidin-Biotin-Complex (SABC)(Catalog # SA1022) with DAB as the chromogen.

Figure 2. Western blot analysis of Thrombospondin 2/THBS2 using anti-Thrombospondin 2/THBS2 antibody (PA1417).
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 50ug of sample under reducing conditions.
Lane 1: rat brain tissue lysates,
Lane 2: mouse brain tissue lysates.
After Electrophoresis, proteins were transferred to a Nitrocellulose membrane at 150mA 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-Thrombospondin 2/THBS2 antigen affinity purified polyclonal antibody (Catalog # PA1417) 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 1:10000 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 Thrombospondin 2/THBS2 at approximately 160-190KD. The expected band size for Thrombospondin 2/THBS2 is at 130KD.

Figure 1. Western blot analysis of Thrombospondin 2/THBS2 using anti-Thrombospondin 2/THBS2 antibody (PA1417).
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 50ug of sample under reducing conditions.
Lane 1: human Hela whole cell lysates,
Lane 2: human 22RV1 whole cell lysates,
Lane 3: human U-87MG whole cell lysates,
Lane 4: human THP-1 whole cell lysates,
Lane 5: human PC-3 whole cell lysates,
Lane 6: human Caco-2 whole cell lysates.
After Electrophoresis, proteins were transferred to a Nitrocellulose membrane at 150mA 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-Thrombospondin 2/THBS2 antigen affinity purified polyclonal antibody (Catalog # PA1417) 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 1:10000 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 Thrombospondin 2/THBS2 at approximately 160-190KD. The expected band size for Thrombospondin 2/THBS2 is at 130KD.

Figure 4. Flow Cytometry analysis of U-87MG cells using anti- Thrombospondin 2/THBS2 antibody (PA1417).
Overlay histogram showing U-87MG cells stained with PA1417 (Blue line).The cells were blocked with 10% normal goat serum. And then incubated with rabbit anti-Thrombospondin 2/THBS2 Antibody (PA1417,1μg/1x106 cells) for 30 min at 20°C. DyLight®488 conjugated goat anti-rabbit IgG (BA1127, 5-10μg/1x106 cells) was used as secondary antibody for 30 minutes at 20°C. Isotype control antibody (Green line) was rabbit IgG (1μg/1x106) used under the same conditions. Unlabelled sample (Red line) was also used as a control.

Target Info

Protein Target Info (Source: Uniprot.org)

Uniprot Id P35442
Gene Name THBS2
Protein Name Thrombospondin-2
Tissue Specificity High expression in invertebral disk tissue. .
Alternative Names Thrombospondin-2;THBS2;TSP2;
Molecular Weight 129991 MW

*if product is indicated to react with multiple species, protein info is based on the human gene.

Ontology

Protein Function Adhesive glycoprotein that mediates cell-to-cell and cell-to-matrix interactions. Ligand for CD36 mediating antiangiogenic properties. .
Research Areas Human, Mouse, Rat

*You can search these to find other products in these research areas.
Background Thrombospondin-2(THBS2) is a protein that in humans is encoded by the THBS2 gene. The protein encoded by this gene belongs to the thrombospondin family. The THBS2 is mapped to 6q27 and it is located on chromosome 17. The gene was transcribed in fibroblasts, smooth muscle cells, and an osteosarcoma cell line. It functions as a protein inhibitor of tumor growth and angiogenesis and modulates the cell surface properties of mesenchymal cells and be involved in cell adhesion and migration.

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Polyclonal antibody for Thrombospondin 2/THBS2 detection. Host: Rabbit.Size: 100μg/vial. Tested applications: WB, IHC-P, IHC-F, ICC, FCM. Reactive species: Human;Mouse;Rat. Thrombospondin 2/THBS2 information: Molecular Weight: 129991 MW; Tissue Specificity: High expression in invertebral disk tissue.
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PA1417
Buy one primary antibody get one 0.5ml HRP or Biotin secondary antibody for free.
*Sample sizes are prepared on demand and will take extra lead time. (cannot be conjugated)
$280.00

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Customer Q&As

  • Q: Do you offer BSA-free antibodies? Keyword: Bovine serum albumin, carrier protein, conjugation
    A: Yes, please contact us at support@bosterbio.com for more information about BSA-free antibodies and availability. The new BSA-free formula uses trehalose as a replacement to BSA. We have tested many alternative chemicals and found that trehalose protects the antibodies the best.
  • Q: Is your western blot protocol provided from the website applicable for all your antibodies? Keyword: applications, WB
    A: The protocol is applicable for all our antibodies in WB, the NC Membrane(0.45μm or 0.22μm) and transfer time(70 mins or 50 mins) depends on the protein molecular weight, details can be found in included protocol.
  • Q: Can I conjugate markers to this antibody? Can I link custom conjugates to this antibody? Keyword: conjugation
    A: The antibody is stored with BSA and cannot be conjugated with markers. Carrier free antibodies are available upon request. Please contact support@bosterbio.com
  • Q: What should I use for negative control?
    A: Please contact us for negative control suggestions. You can also check expression databases such as genecards, uniprot etc. Due to logistic reasons, we do not sell serum or lysates that we use internally for positive or negative control.
  • Q: Where can I find troubleshooting information? What should I do if I have unexpected bands, high background, no signal, weak signal
    A: You can find Boster's troubleshoot guides under tech support tab. Please contact us for further assistance on troubleshooting your experiment.
  • Q: What is the immunogen sequence of this antibody? Is this antibody polyclonal or monoclonal?
    A: You can find the immunogen sequence under "
  • Q: What is the expected band size? Why is it different than the observed band size?
    A: The expected band size is predicted on the size of the protein. The actual band size may be affected by a few other factors including but not limited to:<br>1. Post-translational modification:phosphorylation, methylation, glycosylation etc. These modifications prevent SDS molecules from binding to the target protein and thus make the band size appear larger than expected<br>2. Post-translational cleavage: this can cause smaller bands and or multiple bands <br><br>3. Alternative splicing: the same gene can have alternative splicing patterns generating different size proteins, all with reactivities to the antibody. <br><br>4. Amino Acid R chain charge: SDS binds to positive charges. The different size and charge of the Amino Acid side chains can affect the amount of SDS binding and thus affect the observed band size.<br>5. Multimers: Multimers are usually broken up in reducing conditions. However if the interactions between the multimers are strong, the band may appear higher., <br>
  • Q: What is the suggested dilution ratio for Western Blot (WB), Immunohistochemistry (IHC) and or ELISA standards? What is the optimal pH for the sample?
    A: Check the datasheet for the product for details on dilution ratios for different experiments. You can find the datasheet button on the right side of the product page.
  • Q: What is the protocol you used for your Western blotting (WB) and Immunohistochemistry (IHC)?
    A: Check our protocols under the tech support tab.
  • Q: What are some alternative names that could be used to describe this product?
    A: One other very common name is thrombospondin-2 antibody
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