Description：Recombinant Human GH2 Protein is produced by E. coli. It is a single, non-glycosylated, polypeptide chain containing 177 amino acids and having a molecular mass of 20498 Dalton.Form：Lyophilized from a concentrated (1mg/ml) solution with 0.0045mM NaHCO3 previously adjusted pH 11.Gene Symbol：GH2Alternative Names：Growth hormone variant; GH-V; Growth hormone 2; Placenta-specific growth hormone Entrez Gene (Human)： 2689; SwissProt (Human)： P01242; Purity：The purity human placental growth hormone 20 K is greater than 98.0% as determined by: (a) Gel filtration analysis > 97% monomers as determined by gel-filtration chromatography (b) Analysis by reducing and non-reducing SDS-PAGE gel.Chemical Structure：N-terminal aminoacids equence:Al a-Phe-Pro- Thr-IleDirections for Use：It is recommended to reconstitute the lyophilized human placental growth hormone 20 K in sterile water or sterile 0.4% NaHCO3 adjusted to pH 10, not less than 100μg/ml, which can then be further diluted with other aqueous solutions.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.