TotalSeq™-A0553 anti-mouse CD309 (VEGFR2, Flk-1) Antibody

Pricing & Availability
Avas12 (See other available formats)
Other Names
Fetal liver kinase 1 (Flk-1), VEGF receptor-2, VEGF-R2, Ly-73, KDR
Rat IgG2a, κ
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136415 10 µg £218
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CD309 is also known as vascular endothelial growth factor receptor 2 (VEGFR2) and fetal liver kinase-1 (Flk-1). CD309 is a member of the tyrosine protein kinase family that contains a single pass transmembrane receptor with a protein kinase domain and seven immunoglobulin-like domains in the extracellular region. CD309 is expressed at high levels in adult heart, lung, kidney, brain, and skeletal muscle. It's a receptor for VEGF or VEGFC, and plays an important role in the development of vascular endothelial cells, hematopoietic cells, and vascular permeability.

Product Details
Technical Data Sheet (pdf)

Product Details

Antibody Type
Host Species
Murine Flk1 fused to hIgG Fc
Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide and 1 mM EDTA.
The antibody was purified by chromatography and conjugated with TotalSeq™-A oligomer under optimal conditions. The solution is free of unconjugated DNA and unconjugated antibody.
0.5 mg/ml
Storage & Handling
The antibody solution should be stored undiluted between 2°C and 8°C. Do not freeze.

PG - Quality tested

Recommended Usage

Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis and the oligomer sequence is confirmed by sequencing. For Proteogenomics TotalSeq™-A analysis, the suggested use of this reagent is ≤ 1.0 µg per million cells in 100 µl volume. It is recommended that the reagent be titrated for optimal performance for each application.

To maximize performance, centrifuge the antibody dilution (1.0 µg of antibody in 100 µl of staining buffer for every 1 million cells) before adding to the cells at 14,000xg at 2 - 8°C for 10 minutes. Carefully pipette out the liquid avoiding the bottom of the tube and add to the cell suspension.

Buyer is solely responsible for determining whether Buyer has all intellectual property rights that are necessary for Buyer's intended uses of the BioLegend TotalSeq™ products. For example, for any technology platform Buyer uses with TotalSeq™, it is Buyer's sole responsibility to determine whether it has all necessary third party intellectual property rights to use that platform and TotalSeq™ with that platform.
Application Notes

Avas12 recognizes a different epitope than clone 89B3A5. Additional reported applications (for the relevant formats) include: Western blotting1 and immunohistochemical staining of paraformaldehyde-fixed frozen sections2.

Additional Product Notes

TotalSeq™ reagents are designed to profile protein expression at a single cell level following an optimized protocol similar to the CITE-seq workflow. A compatible single cell device (e.g. 10x Genomics Chromium System and Reagents) and sequencer (e.g. Illumina analyzers) are required. Please contact technical support for more information, or visit

The TotalSeq™-A barcode sequence associated with clone Avas12 is ATAAGAGCCCACCAT.

The flanking sequences are CCTTGGCACCCGAGAATTCCA, and the capture sequence, BAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA*A*A, B represents either C, G, or T, and * indicates a phosphorothioated bond, to prevent nuclease degradation.

The full oligomer sequence for this product, with the specific barcode in brackets is CCTTGGCACCCGAGAATTCCA [ATAAGAGCCCACCAT]BAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA*A*A.

Application References

(PubMed link indicates BioLegend citation)
  1. Kataoka H, et al. 1997. Dev. Growth Differ. 39:729. (WB)
  2. Ishitobi H, et al. 2010. Exp. Anim. 59:615. (IHC)
AB_2783095 (BioLegend Cat. No. 136415)

Antigen Details

A receptor protein tyrosine kinase closely related to CD117 (c-kit) and CD140a (PDGF receptor α chain) of the immunoglobulin superfamily

Expressed at high levels in adult heart, lung, kidney, brain, and skeletal muscle

Plays an important role in the development of vascular endothelial cells, hematopoietic cells, and vascular permeability
Ligand Receptor
Vascular endothelial growth factor (VEGF)
Biology Area
Angiogenesis, Cell Biology, Immunology
Molecular Family
Adhesion Molecules, CD Molecules, Cytokine/Chemokine Receptors
Antigen References

1. Kaburn N, et al. 1997. Development. 124:2039
2. Patterson C, et al. 1995. J. Bio. Chem. 270:23111
3. Nishikawa SI, et al. 1998. Immunity 8 (6):761
4. Shalaby F, et al. 1997. Cell. 89 (6):981

Gene ID
16542 View all products for this Gene ID
View information about CD309 on

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Go To Top Version: 1    Revision Date: 10/15/2018

For research use only. Not for diagnostic use. Not for resale. BioLegend will not be held responsible for patent infringement or other violations that may occur with the use of our products.


*These products may be covered by one or more Limited Use Label Licenses (see the BioLegend Catalog or our website, BioLegend products may not be transferred to third parties, resold, modified for resale, or used to manufacture commercial products, reverse engineer functionally similar materials, or to provide a service to third parties without written approval of BioLegend. By use of these products you accept the terms and conditions of all applicable Limited Use Label Licenses. Unless otherwise indicated, these products are for research use only and are not intended for human or animal diagnostic, therapeutic or commercial use.


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This data display is provided for general comparisons between formats.
Your actual data may vary due to variations in samples, target cells, instruments and their settings, staining conditions, and other factors.
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