- BP001001-C226: Recombinant Human Glial Cell Line-Derived Neurotrophic Factor (GDNF) Protein 
 
 Source: E. coli-derived.
 Purity: > 95% by reducing SDS-PAGE.
 Endotoxin: < 0.1 ng/ug (1 IEU/ug).
- BP001001-CYT-305: Recombinant Human Glial Cell Line-Derived Neurotrophic Factor (GDNF) Protein 
 
 Source: E. coli-derived.
 The ED50, calculated by the dose-dependant dopamin uptake in rat mesencephalic cultures was found to be 5-10 ng/ml, corresponding to a specific activity of 100,000-200,000 Units/mg.
 Purity: > 98% by SDS-PAGE and RP-HPLC.