Human FOLR1 Biotinylated Antibody

Catalog # Availability Size / Price Qty
BAF5646
Product Details
Citations (3)
FAQs
Supplemental Products
Reviews

Human FOLR1 Biotinylated Antibody Summary

Species Reactivity
Human
Specificity
Detects human FOLR1 in ELISAs and Western blots. In sandwich ELISAs, less than 0.2% cross-reactivity with recombinant human (rh) FOLR2, rhFOLR3, rhFOLR4 and recombinant mouse FOLR1 is observed.
Source
Polyclonal Goat IgG
Purification
Antigen Affinity-purified
Immunogen
Chinese hamster ovary cell line CHO-derived recombinant human FOLR1
Arg25-Met233
Accession # P15328
Formulation
Lyophilized from a 0.2 μm filtered solution in PBS with BSA as a carrier protein.
Label
Biotin

Applications

Recommended Concentration
Sample
Western Blot
0.1 µg/mL
Recombinant Human FOLR1 (Catalog # 5646-FR)

Human FOLR1 Sandwich Immunoassay

Recommended Concentration
Reagent
ELISA Detection (Matched Antibody Pair)
0.1-0.4 µg/mL 

Use in combination with:

Capture Reagent: Human FOLR1 Antibody (Catalog # MAB5646)

Standard: Recombinant Human FOLR1 Protein, CF (Catalog # 5646-FR)

Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.

Reconstitution Calculator

Reconstitution Calculator

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Preparation and Storage

Reconstitution
Reconstitute at 0.2 mg/mL in sterile PBS.
Reconstitution Buffer Available
Reconstitution Buffer 1 (PBS)
Catalog #
Availability
Size / Price
Qty
RB01
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.
  • 6 months, -20 to -70 °C under sterile conditions after reconstitution.

Background: FOLR1

Folate Receptor 1 (FOLR1), also known as Folate Receptor alpha and Folate Binding Protein (FBP), is a 37‑42 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 FOLR1 is an N-glycosylated protein that is anchored to the cell surface by a GPI linkage (3‑6). Human FOLR1 shares 83% amino acid sequence identity with mouse and rat FOLR1.  FOLR1 is predominantly expressed on epithelial cells and is dramatically upregulated on many carcinomas (7, 8). It is critically required during early embryogenesis as shown in knockout mice which die in utero with gross morphological defects (9). FOLR1 is internalized to the endosomal system where it dissociates from its ligand before recycling to the cell surface (6, 10). A soluble form of FOLR1 can be proteolytically shed from the cell surface into the serum and breast milk (11).

References
  1. Kelemen, L.E. (2006) Int. J. Cancer 119:243.
  2. Fowler, B. et al. (2001) Kidney Int. 59:S-221.
  3. Luhrs, C.A. et al. (1989) J. Biol. Chem. 264:21446.
  4. Lacey, S.W. et al. (1989) J. Clin. Invest. 84:715.
  5. Elwood, P.C. (1989) J. Biol. Chem. 264:14893.
  6. Rijnboutt, S. et al. (1996) J. Cell Biol. 132:35.
  7. Ross, J.F. et al. (1994) Cancer 73:2432.
  8. Parker, N. et al. (2005) Anal. Biochem. 338:284.
  9. Piedrahita, J.A. et al. (1999) Nat. Genet. 23:228.
  10. Paulos, C.M. et al. (2004) Mol. Pharmacol. 66:1406.
  11. Elwood, P.C. et al. (1991) J. Biol. Chem. 26:2346.
Long Name
Folate Receptor 1
Entrez Gene IDs
2348 (Human); 14275 (Mouse); 171049 (Rat)
Alternate Names
Adult folate-binding protein; FBP; folate binding protein; folate receptor 1 (adult); Folate receptor 1; folate receptor alpha; Folate receptor, adult; Folbp1; FOLR; FOLR1; FR-alpha; KB cells FBP; MOv18; Ovarian tumor-associated antigen MOv18

Product Datasheets

Citations for Human FOLR1 Biotinylated Antibody

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

3 Citations: Showing 1 - 3
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  1. Targeting of folate receptor beta on acute myeloid leukemia blasts with chimeric antigen receptor-expressing T cells.
    Authors: Lynn R, Poussin M, Kalota A, Feng Y, Low P, Dimitrov D, Powell D
    Blood, 2015;125(22):3466-76.
    Species: Human
    Sample Types: Whole Cells
    Applications: Neutralization
  2. Conditions associated with circulating tumor-associated folate receptor 1 protein in healthy men and women.
    Authors: Kelemen L, Brenton J, Parkinson C, C Whitaker H, Piskorz A, Csizmadi I, Robson P
    PLoS ONE, 2014;9(5):e96542.
    Species: Human
    Sample Types: Serum
    Applications: ELISA Development (Detection)
  3. Harnessing engineered antibodies of the IgE class to combat malignancy: initial assessment of FcvarepsilonRI-mediated basophil activation by a tumour-specific IgE antibody to evaluate the risk of type I hypersensitivity.
    Authors: Rudman SM, Josephs DH, Cambrook H, Karagiannis P, Gilbert AE, Dodev T, Hunt J, Koers A, Montes A, Taams L, Canevari S, Figini M, Blower PJ, Beavil AJ, Nicodemus CF, Corrigan C, Kaye SB, Nestle FO, Gould HJ, Spicer JF, Karagiannis SN
    Clin. Exp. Allergy, 2011;41(10):1400-1413.
    Species: Human
    Sample Types: Serum
    Applications: ELISA Development

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