Growth Hormone Human Recombinant (Cat. #PRP-202)
Specificity & Preparation: Growth Hormone (GH) Human Recombinant produced in E. coli is a single, non-glycosylated, polypeptide chain containing 192 amino acids and having a molecular mass of 22260 Daltons. The GH is purified by proprietary chromatographic techniques. The GH (1 mg/ml) was lyophilized after extensive dialyses against 8 mg mannitol and 0.34 mg sodium phosphate buffer (0.02 mg sodium phosphate monobasic & 0.32 mg sodium phosphate dibasic). Purity is greater than 98.0% as determined by RP-HPLC and SDS-PAGE. The sequence of the first five N-terminal amino acids was determined and was found to be Met-Phe-Pro-Thr-Ile. The biological activity is 3 units/mg. Protein quantitation was carried out by two independent methods: 1) UV spectroscopy at 280 nm using the absorbency value of 0.72 as the extinction coefficient for a 0.1% (1 mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics). 2) Analysis by RP-HPLC, using a calibrated solution of GH as a Reference Standard.
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