Recombinant Human precursor form of Nerve Growth Factor/pro-NGF produced in E. coli is a non-glycosylated non-covalently linked homodimer with each polypeptide chain containing 222 amino acids with an extra N-terminal Met with a molecular mass of 25kDa.
Pureté
> 95 % as determined by reducing SDS-PAGE.
Stérilité
0.2 μm filtered
niveau d'endotoxine
Less than 0.1 ng/μg (1 IEU/μg) as determined by LAL test
NGF
Origine: Macaque rhésus
Hôte: Escherichia coli (E. coli)
Recombinant
> 97 %
WB, SDS, Imm, PC
Restrictions
For Research Use only
Format
Lyophilized
Reconstitution
It is not recommended to reconstitute to a concentration less than 100 μg/mL. Dissolve the lyophilized protein in ddH2O. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
Buffer
Lyophilized from a 0.2 μm filtered solution of 20 mM PB, 250 mM NaCl, pH 7.2.
Conseil sur la manipulation
Always centrifuge tubes before opening. Do not mix by vortex or pipetting.
Stock
4 °C/-20 °C/-80 °C
Stockage commentaire
Lyophilized protein should be stored at < -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 4-7°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.
The precursor form of the nerve growth factor (proNGF) like its mature form is characterized by the cystin knot motif consisting of three cystine bridges, whereas proneurotrophins and mature neurotrophins elicit opposite biological effects. ProNGF functions preferentially via the complex of pan-neurotrophin receptor p75 (p75NTR) and vps10p domain-containing receptor sortilin inducing neuronal apoptosis and contributing to age- and disease-related neurodegeneration. Alternative Names: Beta-Nerve Growth Factor, Beta-NGF, NGF, NGFB