Biolegend, 353255, Ultra-LEAF™ Purified anti-human CD197 (CCR7) Antibody, 100μg

CCR7, also known as CD197, is a chemokine receptor that binds CCL19 and CCL21. CCR7 and its ligands link innate and adaptive immunity by affecting interactions between T cells and dendritic cells and their downstream effect. Naïve T cells enter the lymph node through high endothelial venules, which express CCL21. Dendritic cells and macrophages enter the lymph node through afferent lymphatics. The encounter of T cells and dendritic cells in the T cell zone is CCR7-dependent. In addition, during immunological surveillance, B cells recirculate between B-cell-rich compartments (follicles or B cell zones) in secondary lymphoid organs, surveying for antigen. After antigen binding, B cells move to the boundary of B and T zones to interact with T-helper cells; this B cell migration is directed by CCR7 and its ligands. CCR7-positive cancer cell expression has been associated with lymph node metastasis.
100μg
Verified Reactivity: Human
Reported Reactivity: African Green, Baboon, Cynomolgus, Rhesus
Antibody Type: Monoclonal
Host Species: Mouse
Immunogen: CCR7-transfected cells
Formulation: 0.2 µm filtered in phosphate-buffered solution, pH 7.2, containing no preservative.
Endotoxin Level: Less than 0.01 EU/µg of the protein (< 0.001 ng/µg of the protein) as determined by the LAL test.
Preparation: The Ultra-LEAF™ (Low Endotoxin, Azide-Free) antibody was purified by affinity chromatography.
Concentration: The antibody is bottled at the concentration indicated on the vial, typically between 2 mg/mL and 3 mg/mL. Older lots may have also been bottled at 1 mg/mL. To obtain lot-specific concentration and expiration, please enter the lot number in our Certificate of Analysis online tool.
Storage & Handling: The antibody solution should be stored undiluted between 2°C and 8°C. This Ultra-LEAF™ solution contains no preservative; handle under aseptic conditions.
Application: FC, Block - Quality tested
Recommended Usage: Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. For flow cytometric staining, the suggested use of this reagent is ≤ 0.5 µg per million cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.
Product Citations: Chan S, et al. 2022. Nat Cancer. . PubMed Taft J, et al. 2021. Cell. 184(17):4447-4463.e20. PubMed Gruber CN, et al. 2020. Immunity. 53(3):672-684. PubMed Yang R, et al. 2020. Cell. 183(7):1826-1847.e31. PubMed
RRID: AB_2814290 (BioLegend Cat. No. 353255) AB_2814291 (BioLegend Cat. No. 353256)
Structure: Chemokine receptor, G protein-coupled receptors (GPCR), seven transmembrane receptor.
Distribution: T cells, B cells, NK, dendritic cells.
Function: The chemokine receptor CCR7 plays a pivotal role in the homing of naïve T cells and regulatory T cells to secondary lymphoid organs, and the migration of dendritic cells into afferent lymphatic vessels.
Ligand/Receptor: CCL19 and CCL21.
Cell Type: B cells, Dendritic cells, NK cells, T cells
Biology Area: Immunology
Molecular Family: CD Molecules, Cytokine/Chemokine Receptors, GPCR
Antigen References: 1. Yanagihara S, et al. 1998. J. Immunol. 161:3096. 2. Charo IF, et al. 2006. N. Engl. J. Med. 354:610. 3. Reif K, et al. 2002. Nature 416:94. 4. Nakata B, et al. 2008. Oncology 74:69. 5. Brodie T. et al. 2013. Cytometry A. 6: 530-2. PubMed 6. Graves A.J. et al. 2014. Cytometry A. 7: 576–9 PubMed 7. Moncunill G. et al. 2014. Cytometry A. 12: 995-8 PubMed
Gene ID: 1236
UniProt: View information about CD197 on UniProt.org
Clone: G043H7
Regulatory Status: RUO
Other Names: BLR2, CDw197, EBI1, CMKBR7
Isotype: Mouse IgG2a, κ
Q: Does staining at room temperature or even at 37°C help for checking chemokine receptors expression?
A: Due to continuous recycling of many chemokine receptors, it may be worthwhile to consider staining at room temperature or at 37°C if the staining at lower temperature (which can potentially reduce receptor turnover) is not optimal.
Q: Do you guarantee that your antibodies are totally pathogen free?
A: BioLegend does not test for pathogens in-house aside from the GoInVivo™ product line. However, upon request, this can be tested on a custom basis with an outside, independent laboratory.
Q: Does BioLegend test each Ultra-LEAF™ antibody by functional assay?
A: No, BioLegend does not test Ultra-LEAF™ antibodies by functional assays unless otherwise indicated. Due to the possible complexities and variations of uses of biofunctional antibodies in different assays and because of the large product portfolio, BioLegend does not currently perform functional assays as a routine QC for the antibodies. However, we do provide references in which the antibodies were used for functional assays and we do perform QC to verify the specificity and quality of the antibody based on our strict specification criteria.
Q: Does BioLegend test each Ultra-LEAF™ antibody for potential pathogens?
A: No, BioLegend does not test for pathogens in-house unless otherwise indicated.  However, we can recommend an outside vendor to perform this testing as needed.
Q: Have you tested this Ultra-LEAF™ antibody for in vivo or in vitro applications?
A: We don't test our antibodies for in vivo or in vitro applications unless otherwise indicated. Depending on the product, the TDS may describe literature supporting usage of a particular product for bioassay. It may be best to further consult the literature to find clone specific information.