Description: Recombinant Human PTH Protein is produced by E. coli. It is a single non-glycosylated polypeptide chain containing 84 amino acids with a molecular mass of 9 kD. Form: Lyophilized from a 0.2 μM filtered solution of 10mM HAc-NaAc, 150mM NaCl, 5% Mannitol, pH 4.0. Gene Symbol: PTH Alternative Names: Parathyroid hormone; PTH; Parathormone; ParathyrinEntrez Gene (Human): 5741SwissProt (Human): P01270Purity : Greater than 95% as determined by SEC-HPLC and reducing SDS-PAGE.Chemical Structure : SVSEIQLMHN LGKHLNSMER VEWLRKKLQD VHNFVALGAP LAPRDAGSQR PRKKEDNVLV ESHEKSLGEA DKADVNVLTK AKSQ 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.