Recombinant Human FOLR2 Protein, CF

R&D Systems | Catalog # 5697-FR

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Key Product Details

  • R&D Systems CHO-derived Recombinant Human FOLR2 Protein (5697-FR)
  • Quality control testing to verify active proteins with lot specific assays by in-house scientists
  • All R&D Systems proteins are covered with a 100% guarantee

Source

CHO

Accession Number

P14207

Applications

Binding Activity
View all FOLR2 Proteins and Enzymes »

Product Specifications

Source

Chinese Hamster Ovary cell line, CHO-derived human FOLR2 protein
Gln22-His228, with a C-terminal 6-His tag

Purity

>95%, by SDS-PAGE under reducing conditions and visualized by silver stain.

Endotoxin Level

<0.01 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

No results obtained: Gln22 predicted

Predicted Molecular Mass

25.4 kDa

SDS-PAGE

25-40 kDa, reducing conditions

Activity

Measured by its binding ability in a functional ELISA.
When Folic Acid-Bovine Serum Albumin was coated at 5 μg/mL (100 μL/well), the concentration of Recombinant Human FOLR-2 that produces 50% of the optimal binding response was found to be <1 nM.

Formulation, Preparation, and Storage

5697-FR
Formulation Lyophilized from a 0.2 μm filtered solution in PBS.
Reconstitution

Reconstitute at 100 μg/mL in PBS.
Shipping The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below.
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.
  • 3 months, -20 to -70 °C under sterile conditions after reconstitution.

Calculators

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.

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Background: FOLR2

Folate Receptor 2 (FOLR2), also known as Folate Receptor beta, is a 38 kDa protein that mediates the cellular uptake of folic acid and reduced folates. Dietary folates are required for many key metabolic processes including nucleotide and methionine synthesis, the interconversion of glycine and serine, and histidine breakdown (1, 2). Mature FOLR2 is an N-glycosylated protein that is anchored to the cell surface by a GPI linkage (3, 4). Human FOLR2 shares 83% amino acid sequence identity with mouse and rat FOLR2. FOLR2 is predominantly expressed in placenta, cells of the neutrophilic lineage, and some CD34+ hematopoietic progenitor cells (4 - 6). It is upregulated on myeloid  leukemias, head and neck squamous cell carcinomas, and several nonepithelial cancers (3, 5, 7). It is also upregulated on macrophages and monocytes at chronic inflammatory sites including rheumatoid arthritis synovium and glioblastoma (8 - 10). FOLR2 knockout mice do not show gross morphological defects, but they exhibit increased sensitivity to arsenate-induced teratogenicity (11, 12).

References

  1. Fowler, B. et al. (2001) Kidney Int. 59:S-221.
  2. Kelemen, L.E. (2006) Int. J. Cancer 119:243.
  3. Shen, F. et al. (1994) Biochemistry 33:1209.
  4. Ratnam, M. et al. (1989) Biochemistry 28:8249.
  5. Ross, J.F. et al. (1999) Cancer 85:348.
  6. Reddy, J.A. et al. (1999) Blood 93:3940.
  7. Ross, J.F. et al. (1994) Cancer 73:2432.
  8. Nakashima-Matsushita, N. et al. (1999) Arthritis Rheum. 42:1609.
  9. van der Heijden, J.W. et al. (2009) Arthritis Rheum. 60:12.
  10. Nagai, T. et al. (2009) Cancer Immunol. Immunother. Feb 24 epub.
  11. Piedrahita, J.A. et al. (1999) Nat. Genet. 23:228.
  12. Wlodarczyk, B. et al. (2001) Toxicol. Appl. Pharmacol. 177:238.

Long Name

Folate Receptor 2

Alternate Names

beta-HFR, FR-beta, FR-P3

Entrez Gene IDs

2350 (Human); 14276 (Mouse); 293154 (Rat)

Gene Symbol

FOLR2

UniProt

P14207 (Human)

Additional FOLR2 Products

Product Documents for Recombinant Human FOLR2 Protein, CF

Certificate of Analysis

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Product Specific Notices for Recombinant Human FOLR2 Protein, CF

For research use only

Related Research Areas

Cancer Biomarkers

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