Description
The 7.1 monoclonal antibody specifically recognizes Neural/Glial Antigen 2 (NG2) which is also known as Melanoma chondroitin sulfate proteoglycan (MCSP) and High molecular weight-melanoma associated antigen (HMW-MAA). This ~251 kDa transmembrane proteoglycan is encoded by CSPG4 (Chondroitin sulfate proteoglycan 4). Chondroitin Sulfate (NG2) is expressed by glial cells but not detected on normal marrow hematopoietic and peripheral blood cells. It is highly expressed by cells in some cancers including melanomas, leukemias, sarcomas and carcinomas. Chondroitin Sulfate (NG2) plays important roles in cellular proliferation, migration, and in oncogenic pathways involved in malignant transformation and metastases.
BD® CompBeads can be used as surrogates to assess fluorescence spillover (compensation). When fluorochrome conjugated antibodies are bound to BD® CompBeads, they have spectral properties very similar to cells. However, for some fluorochromes there can be small differences in spectral emissions compared to cells, resulting in spillover values that differ when compared to biological controls. It is strongly recommended that when using a reagent for the first time, users compare the spillover on cells and BD® CompBeads to ensure that BD® CompBeads are appropriate for your specific cellular application. For optimal and reproducible results, BD Horizon Brilliant™ Stain Buffer should be used anytime BD Horizon Brilliant™ dyes are used in a multicolor flow cytometry panel. Fluorescent dye interactions may cause staining artifacts which may affect data interpretation. The BD Horizon Brilliant Stain Buffer was designed to minimize these interactions. When BD Horizon Brilliant Stain Buffer is used in in the multicolor panel, it should also be used in the corresponding compensation controls for all dyes to achieve the most accurate compensation. For the most accurate compensation, compensation controls created with either cells or beads should be exposed to BD Horizon Brilliant Stain Buffer for the same length of time as the corresponding multicolor panel. More information can be found in the Technical Data Sheet of the BD Horizon Brilliant Stain Buffer (Cat. No. 563794/566349) or the BD Horizon Brilliant Stain Buffer Plus (Cat. No. 566385).
Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze. The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography. The antibody was conjugated to the dye under optimum conditions that minimize unconjugated dye and antibody.
1. Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
2. Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
3. For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
4. An isotype control should be used at the same concentration as the antibody of interest.
5. BD Horizon Brilliant Violet 711 is covered by one or more of the following US patents: 8,110,673; 8,158,444; 8,227,187; 8,455,613; 8,575,303; 8,354,239.
6. BD Horizon Brilliant Stain Buffer is covered by one or more of the following US patents: 8,110,673; 8,158,444; 8,575,303; 8,354,239.
7. Please refer to http://regdocs.bd.com to access safety data sheets (SDS).
8. Alexa Fluor™ is a trademark of Life Technologies Corporation.
9. Cy is a trademark of Global Life Sciences Solutions Germany GmbH or an affiliate doing business as Cytiva.
10. Since applications vary, each investigator should titrate the reagent to obtain optimal results.
11. Human donor specific background has been observed in relation to the presence of anti-polyethylene glycol (PEG) antibodies, developed as a result of certain vaccines containing PEG, including some COVID-19 vaccines. We recommend use of BD Horizon Brilliant™ Stain Buffer in your experiments to help mitigate potential background. For more information visit https://www.bdbiosciences.com/en-us/support/product-notices.
12. Researchers should determine the optimal concentration of this reagent for their individual applications.
13. The production process underwent stringent testing and validation to assure that it generates a high-quality conjugate with consistent performance and specific binding activity. However, verification testing has not been performed on all conjugate lots.
Specifications

General

SourceMouse TNFRSF9, amino acids (Val24-Leu187) (Accession# NM_001077509), was expressed in 293E cells with a C-terminal human IgG-Fc-tag.
Molecular MassThe 398 amino acid recombinant protein has a predicted molecular mass of approximately 43.9 kD. The protein migrates in DTT-reducing and non-reducing conditions at approximately 60 kD and 120 kD by SDS-PAGE respectively. The predicted N-terminal amino acid is Val.
Purity>95%, as determined by Coomassie stained SDS-PAGE.
Formulation0.22 µm filtered protein solution is in PBS, pH 7.2
Endotoxin LevelLess than 0.1 EU per µg of protein as determined by the LAL method.
Concentration10 and 25 µg sizes are bottled at 200 µg/mL. 100 µg size and larger sizes are lot-specific and bottled at the concentration indicated on the vial. To obtain lot-specific concentration and expiration, please enter the lot number in our Certificate of Analysis online tool.
Storage & HandlingUnopened vial can be stored between 2°C and 8°C for up to 2 weeks, at -20°C for up to six months, or at -70°C or colder until the expiration date. For maximum results, quick spin vial prior to opening. The protein can be aliquoted and stored at -20°C or colder. Stock solutions can also be prepared at 50 - 100 µg/mL in appropriate sterile buffer, carrier protein such as 0.2 - 1% BSA or HSA can be added when preparing the stock solution. Aliquots can be stored between 2°C and 8°C for up to one week and stored at -20°C or colder for up to 3 months. Avoid repeated freeze/thaw cycles.
ActivityMouse TNFRSF9 activity was measured by a binding assay. Immobilized mouse TNFRSF9 binds TNFSF9 with an ED50 = 0.2 - 1.2 µg/ml.
ApplicationBioassay
Application NotesBioLegend carrier-free recombinant proteins provided in liquid format are shipped on blue-ice. Our comparison testing data indicates that when handled and stored as recommended, the liquid format has equal or better stability and shelf-life compared to commercially available lyophilized proteins after reconstitution. Our liquid proteins are verified in-house to maintain activity after shipping on blue ice and are backed by our 100% satisfaction guarantee. If you have any concerns, contact us at [email protected].
StructureDimer.
DistributionActivated T cells, natural killer cells, macrophages, neutrophils, dendritic cells, eosinophils, Tregs, activated B cells, mast cells, and endothelial cells in tumor capillaries.
FunctionProliferation of T cells, activates their effector functions, survival, and establishes immunological memory.
InteractionActivated antigen presenting cells, macrophages, B cells, B cell lymphoma, dendritic cells, a small fraction of T cells, epithelial, and endothelial cells.
Ligand/ReceptorTNFSF9 and CD137L.
BioactivityMouse TNFRSF9 binds to TNFSF9.
Biology AreaImmunology
Molecular FamilyCD Molecules, Immune Checkpoint Receptors, Soluble Receptors
Antigen References1. Pollok KE, et al. 1994. Eur. J. Immunol. 24:367. 2. Watts TH. 2005. Annu. Rev. Immunol. 23:23-68. 3. Zhu Y, et al. 2007. Blood 109:4882. 4. Locatelli F. 2009. Blood 11:2208. 5. Wang J, et al. 2010. J. Immunol. 185:7654. 6. Eun SY, et al. 2015. J. Immunol. 1:134-41. 7. Spencer AJ, et al. 2014. PLoS One 9:e105520. 8. Yi L, et al. 2014. PLoS One 1:e86337.
Gene ID21942
UniProtView information about CD137 on UniProt.org
Regulatory StatusRUO
Other NamesCD137, 4-1BB