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Key Documents

PF039

Sigma-Aldrich

GDNF, Rat, Recombinant, S. frugiperda

Synonym(s):

rrGDNF, Glial Derived Neurotrophic Factor

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About This Item

UNSPSC Code:
12352202

Assay

≥97% (SDS-PAGE)

Quality Level

form

lyophilized

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
avoid repeated freeze/thaw cycles

impurities

≤1 EU/μg Endotoxin (EU/μg GDNF)

shipped in

wet ice

storage temp.

−20°C

General description

Recombinant, rat glial derived neurotrophic factor expressed in S. frugiperda insect cells. GDNF is a recombinant rat protein whose DNA sequence was inserted in a baculovirus expression vector and expressed in Sf 21 insect cells. The mature rat GDNF is a disulfide linked dimeric protein containing two 134 amino acid with a predicted molecular weight of 15 kDa for the monomer. Useful for proliferation studies. Glial cell line-derived neurotrophic factor (GDNF) was initially isolated based upon its ability to maintain embryonic midbrain dopaminergic neuron survival in vitro, and additional in vivo studies have provided support for the role of GDNF as a trophic factor in both the central and peripheral nervous systems. GDNF is structurally related to the TGF-β superfamily, and has been shown to interact with the GDNF receptor (GDNFRα). GDNFRα is associated with the cell membrane via a glycosyl-phosphatidylinositol (GPI) linkage, and together with Ret forms a functional receptor complex.
Recombinant, rat glial derived neurotrophic factor expressed in S. frugiperda insect cells. Native GDNF exists as a disulfide homodimeric glycoprotein and is a novel member of the TGF-β superfamily. Titrate the protein for optimal results in individual systems. Immbolized rrGFRa/Fc at 2 µg/ml (100 µl/neu) can bind GDNF at a linear range of 0.1-10 ng/ml.

Biochem/physiol Actions

ED₅₀ = 1-3 ng/ml as measured by the ability to support the survival and stimulate neurite outgrowth of cultured embryonic chick dorsal root ganglia.Immbolized rrGFRα/Fc at 2 µg/ml (100 µl/neu) can bind GDNF at a linear range of 0.1-10 ng/ml.

Physical form

Lyophilized from 35% Acetonitrile, 0.1% TFA, 50 µg BSA/µg GDNF.

Preparation Note

Following reconstitution, refrigerate (4°C) for short-term storage or aliquot and freeze (-20°C or -70°C) for long-term storage. Stock solutions are stable for up to 1 month at 4°C or up to 3 months at -20°C or -70°C.
Reconstitute in sterile PBS containing ≥0.1% HSA or BSA to a final concentration of ≥ 10 µg/ml.

Other Notes

Durbec, P., et al. 1996. Nature381, 789.
Jing, s., et al. 1996. Cell85, 1113.
Treanor, J.J.S., et al. 1996. Nature382 80.
Trupp, M., et al. 1996. Nature381, 785.
Hudson, J., et al. 1995. Brain Res. Bull.36, 425.
Tomac, A., et al. 1995. Nature373, 335.
Lin, L.-F.H., et al. 1993. Science260, 1130.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Toxicity: Standard Handling (A)

Storage Class Code

11 - Combustible Solids

WGK

WGK 3


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