Skip to main content

Key Product Details

Species Reactivity



CyTOF-ready, Flow Cytometry, Western Blot



Antibody Source

Monoclonal Mouse IgG1 Clone # 49560

Product Summary for Human VEGFR1/Flt-1 Antibody


S. frugiperda insect ovarian cell line Sf 21-derived recombinant human VEGFR1/Flt-1
Accession # NP_001153392


Detects human VEGFR1/Flt-1 in direct ELISAs and Western blots. In Western blots, this antibody does not cross-react with recombinant mouse VEGFR1, recombinant human (rh) VEGFR2, rhVEGFR3, or rhVEGFR4.







Scientific Data Images for Human VEGFR1/Flt-1 Antibody

Detection of VEGFR1/Flt-1 antibody in HUVEC Human Cells antibody by Flow Cytometry.

Detection of VEGFR1/Flt‑1 in HUVEC Human Cells by Flow Cytometry.

HUVEC human umbilical vein endothelial cells was stained with Mouse Anti-Human VEGFR1/Flt-1 Monoclonal Antibody (Catalog # MAB321, filled histogram) or isotype control antibody (Catalog # MAB002, open histogram), followed by Phycoerythrin-conjugated Anti-Mouse IgG Secondary Antibody (Catalog # F0102B).

Applications for Human VEGFR1/Flt-1 Antibody

Recommended Usage


Ready to be labeled using established conjugation methods. No BSA or other carrier proteins that could interfere with conjugation.

Flow Cytometry

2.5 µg/106 cells
Sample: HUVEC human umbilical vein endothelial cells

Western Blot

1 µg/mL
Sample: Recombinant Human VEGFR1/Flt-1 Fc Chimera (Catalog # 321-FL)
under non-reducing conditions only
Please Note: Optimal dilutions of this antibody should be experimentally determined.

Reviewed Applications

Read 1 review rated 5 using MAB321 in the following applications:

Published Applications

Read 11 publications using MAB321 in the following applications:

Formulation, Preparation, and Storage


Protein A or G purified from hybridoma culture supernatant


Reconstitute at 0.5 mg/mL in sterile PBS.

Reconstitution Buffer Available:
Size / Price


Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied either lyophilized or as a 0.2 µm filtered solution in PBS.


The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C

Stability & Storage

Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 12 months from date of receipt, -20 to -70 °C as supplied.
  • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: VEGFR1/Flt-1

Vascular Endothelial Growth Factor Receptor 1 (VEGFR1) is a receptor tyrosine kinase that is expressed primarily on endothelial cells and plays a role in vasculogenesis and angiogenesis. A soluble variant of VEGFR1 was also reported to bind VEGF and PlGF with high affinity and function as a potent VEGF antagonist.

Long Name

Vascular Endothelial Growth Factor Receptor 1

Alternate Names

Flt-1, FLT1, FRT, VEGF R1, VEGFR-1

Entrez Gene IDs

2321 (Human); 14254 (Mouse)

Gene Symbol



Product Documents for Human VEGFR1/Flt-1 Antibody

Certificate of Analysis

To download a Certificate of Analysis, please enter a lot number in the search box below.

Note: Certificate of Analysis not available for kit components.

Product Specific Notices for Human VEGFR1/Flt-1 Antibody

For research use only


Reconstitution Calculator

The reconstitution calculator allows you to quickly calculate the volume of a reagent to reconstitute your vial. Simply enter the mass of reagent and the target concentration and the calculator will determine the rest.

Setting the standard in quality research reagents