GFR alpha 3 peptide

Members of the glial cell line-derived neurotrophic factor (GDNF) family including GDNF and neurturin (NTN) play essential roles in the control of vertebrate neuron survival and differentiation. A new member of the GDNF family was recently identified and designated persephin. Physiological responses to these neurotrophic factors require two receptor subunits, the novelglycosylphosphadidylinositol linked protein GFRa and Ret receptor tyrosine kinase GFRb. Following the discovery of GFRa-1 and -2, a novel receptor in GFRa family was identified recently in human and mouse and designated GFRa-3. GFRa-3 binds persephin, thus, persephin, GFRa-3, and Ret PTK form a complex to transduce persephin signal and to mediate persephin function.