Purified recombinant Human Persephin protein Expression System: E.coli Bioactivity: Human Persephin induces RET phosphorylation using a concentration range of 0.1-1.0 ng/mL. Human Persephin binds to mammalian GFRa4 with the Kd of 100 pM. Other members of the GDNF family (Artemin, GDNF and Neurturin) do not bind to mammalian GFRa4.
PSPN Protein, PSP Protein, persephin Protein, PSPN Protein, Pspn Protein
背景
Persephin is a disulfide-linked homodimer neurotrophic factor structurally related to GDNF, Artemin, and Neurturin. These proteins belong to the cysteine-knot family of growth factors that assume stable dimeric structures. Persephin signals through a multicomponent receptor system, composed of RET and one of four GFR alpha (alpha1-alpha4) receptors. The GFRalpha4 was first identified in chicken and was later shown to be the preferential binding subunit for Persephin. Persephin promotes the survival of ventral midbrain dompaminergic neurons and motor neurons after sciatic nerve oxotomy, and like GNDF, promotes ureteric bud branching. However, in contrast to GDNF and Neurturin, Persephin does not support survival of peripheral neurons. Alternative Names: PSP protein, PSPN protein