Name : PTH (7-34aa), Human
Product Concentration :
Background :
Polypeptide hormones secreted by the parathyroid glands, which promote release of calcium from bone to extracellular fluid by activating osteoblasts and inhibiting osteoclasts, indirectly promote increased intestinal absorption of calcium, and promote renal tubular reabsorption of calcium and increased renal excretion of phosphates. It is a major regulator of bone metabolism. Secretion of parathyroid hormone increases when the level of calcium in the extracellular fluid is low. Its action is opposed by calcitonin.
Biological Activity :
Fully biologically active when compared to standard. The specific activity is determined by UMR106 cell/cAMP method, corresponding to a specific activity of > 1.0 × 104 IU/mg.
expression system :
E. coli
Tag :
PTH (Leu38-Phe65)Accession # P01270
Protein Accession No. :
P01270
Synonyms :
Parathyroid Hormone
Molecular Weight :
Purity :
> 97% as analyzed by SDS-PAGE> 97% as analyzed by HPLC
Product Concentration :
Lyophilized from a 0.2 μm filtered solution in PBS, pH 7.4.
Storage and Stability :
Upon receiving, this product remains stable for up to 6 months at -70°C or -20°C. Upon reconstitution, the product should be stable for up to 1 week at 4°C or up to 3 months at -20°C. Avoid repeated freeze-thaw cycles.
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