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Persephin (PSP)

CAT: 209-100-120-L250Size: 250 µgDry Ice: NoHazardous: No
250 µgSelected
PRICE
AVAILABILITY
24/48H Stock Items & 2 to 6 Weeks non Stock Items.
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Description
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 α (α1-α4) receptors. The GFRα4 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. Recombinant human Persephin is a disulfide-linked homodimer, composed of two 10.3 kDa polypeptide chains (192 total amino acid residues) . Each chain contains seven conserved cysteine residues, one of which (Cys 63) is used for inter-chain disulfide bridging and the others are involved in intramolecular ring formation known as the cysteine knot configuration.
Synonyms
PSPN; PSP
NCBI Gene ID
5623
UniProt
O60542
Accession Number
NP_004149.1
Accession Number mRNA
NM_004158
Chromosomal Location
19p13.3
Reactivity
Human
Cross Reactivity
Mouse, Rat, Human
Sequence
RALSGPCQLW SLTLSVAELG LGYASEEKVI FRYCAGSCPR GARTQHGLAL ARLQGQGRAH GGPCCRPTRY TDVAFLDDRH RWQRLPQLSA AACGCGG
Endotoxin
< 0.1 ng/µg of protein (< 1EU/µg)
Purity
> 90% by SDS-PAGE & HPLC analyses
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 100pM. Other members of the GDNF family (Artemin, GDNF and Neurturin) do not bind to mammalian GFRa4.
Length
194
Form
Lyophilized
Molecular Weight
10.4 kDa
Host or Source
E. coli

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