Description: Recombinant Human NGF Protein is produced by E. coli. It is a single non-glycosylated non-covalent homodimer of two 118 amino acid polypeptides each with a molecular mass of 13.4 kD. Form: Lyophilized from a 0.2 μM filtered solution of 20mM PB, 250mM NaCl, pH 7.0. Gene Symbol: NGF Alternative Names: NGFB; Beta-nerve growth factor; Beta-NGFEntrez Gene (Human): 4803SwissProt (Human): P01138Purity : Greater than 95% as determined by SEC-HPLC and reducing SDS-PAGE.Chemical Structure : SSSHPIFHRG EFSVCDSVSV WVGDKTTATD IKGKEVMVLG EVNINNSVFK QYFFETKCRD PNPVDSGCRG IDSKHWNSYC TTTHTFVKAL TMDGKQAAWR FIRIDTACVC VLSRKAVRRA Directions for Use : Always centrifuge tubes before opening. Do not mix by vortex or pipetting. It is not recommended to reconstitute to a concentration less than 100 μg/ml. Dissolve the lyophilized protein in 1X PBS. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.Quality Control : Endotoxin: Less than 0.1 ng/μg (1 IEU/μg) as determined by LAL test.Storage/Stability : Lyophilized protein should be stored at -20°C, though stable at room temperature for 3 weeks. Reconstituted protein solution can be stored at 2-8°C for 2-7 days. Aliquots of reconstituted samples are stable at -20°C for 3 months.