Western blot shows lysates of human placental tissue. PVDF membrane was probed with 1 µg/mL of Human FOLR2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF5697) followed by HRP-conjugated Anti-Sheep IgG ...read more
FOLR2 was detected in immersion fixed human neutrophils using Human FOLR2 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF5697) at 10 µg/mL for 3 hours at room temperature. Cells were stained using the ...read more
Chinese hamster ovary cell line CHO-derived recombinant human FOLR2 Gln22-His228 Accession # P14207
Specificity
Detects human FOLR2 in direct ELISAs and Western blots. In direct ELISAs, less than 5% cross-reactivity with recombinant human (rh) FOLR1 and rhFOLR3 is observed.
Source
N/A
Isotype
IgG
Clonality
Polyclonal
Host
Sheep
Gene
FOLR2
Purity Statement
Antigen Affinity-purified
Innovator's Reward
Test in a species/application not listed above to receive a full credit towards a future purchase.
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.
Buffer
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.
Preservative
No Preservative
Concentration
LYOPH
Reconstitution Instructions
Reconstitute at 0.2 mg/mL in sterile PBS.
Notes
This product is produced by and ships from R&D Systems, Inc., a Bio-Techne brand.
Alternate Names for FOLR2 Antibody
beta-HFR
FBP
FBP/PL-1
folate receptor 2 (fetal)
Folate receptor 2
folate receptor beta
folate receptor, beta
Folate receptor, fetal/placental
folate-binding protein, fetal/placental
FOLR2
FR-beta
FR-P3
Placental folate-binding protein
Background
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).
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Ross, J.F. et al. (1999) Cancer 85:348.
Reddy, J.A. et al. (1999) Blood 93:3940.
Ross, J.F. et al. (1994) Cancer 73:2432.
Nakashima-Matsushita, N. et al. (1999) Arthritis Rheum. 42:1609.
van der Heijden, J.W. et al. (2009) Arthritis Rheum. 60:12.
Nagai, T. et al. (2009) Cancer Immunol. Immunother. Feb 24 epub.
Piedrahita, J.A. et al. (1999) Nat. Genet. 23:228.
Wlodarczyk, B. et al. (2001) Toxicol. Appl. Pharmacol. 177:238.
Limitations
This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.
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