Anti-FR antibodies can be readily obtained from commercial sources. Folate receptors (FR) are a family of receptor proteins that bind to and mediate the intracellular delivery of 5-methyltetrahydrofolate, the primary active form of folate. FR proteins in humans include FR alpha (FOLR1), FR beta (FOLR2), and FR gamma (FOLR3). Visit the antibody supplier page for key details, including validated applications and target specificity.