Human FOLR2/Beta Fr ELISA Kit PicoKine®

PicoKine® ELISA Kits

Human FOLR2/Beta Fr ELISA Kit PicoKine® (96 Tests). Quantitate Human FOLR2 in cell culture supernatants and serum. Sensitivity: 1pg/ml.

Folate receptor beta is a protein that in humans is encoded by the FOLR2 gene. The protein encoded by this gene is a member of the folate receptor (FOLR) family, and these genes exist in a cluster on chromosome 11. Members of this gene family have a high affinity for folic acid and for several reduced folic acid derivatives, and they mediate delivery of 5-methyltetrahydrofolate to the interior of cells. This protein has a 68% and 79% sequence homology with the FOLR1 and FOLR3 proteins, respectively. Although this protein was originally thought to be specific to placenta, it can also exist in other tissues, and it may play a role in the transport of methotrexate in synovial macrophages in rheumatoid arthritis patients. Multiple transcript variants that encode the same protein have been found for this gene.

Dilution ratio of 1:5, concentration in serum is around 5.5 ng/ml.

There is no detectable cross-reactivity with other relevant proteins.

monoclonal antibody from mouse|polyclonal antibody from goat

Folate receptor beta

Binds to folate and reduced folic acid derivatives and mediates delivery of 5-methyltetrahydrofolate and folate analogs into the interior of cells. Has high affinity for folate and folic acid analogs at neutral pH. Exposure to slightly acidic pH after receptor endocytosis triggers a conformation change that strongly reduces its affinity for folates and mediates their release..

Expressed in placenta and hematopoietic cells. Expression is increased in malignant tissues..