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Conditions of optimal PTH Protein performance should be determined experimentally by the investigator.
Price/availability/specifications subject to change without notice. Unless otherwise indicated, our catalog and customized products are for research use only and not intended for human or animal diagnostic or therapeutic use.
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Fax: 1-617-606-5019
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Or leave a message with a formal purchase
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Introduction
Parathyroid hormone (PTH), or parathormone, is secreted by the parathyroid glands as a polypeptide containing 84 amino acids. It acts to increase the concentration of calciumin the blood, whereas calcitonin (a hormone produced by the parafollicular cells of the thyroid gland) acts to decrease calcium concentration. PTH acts to increase the concentration of calcium in the blood by acting upon parathyroid hormone receptorin three parts of the body: In the bones- It enhances the release of calcium from the large reservoir contained in the bones. Bone resorption is the normal destruction of bone by osteoclasts, which are indirectly stimulated by PTH. Stimulation is indirect since osteoclasts do not have a receptor for PTH; rather, PTH binds to osteoblasts, the cells responsible for creating bone. Binding stimulates osteoblasts to increase their expression of RANKL, which can bind to osteoclast precursors containing RANK, a receptor for RANKL. The binding of RANKL to RANK stimulates these precursors to fuse, forming new osteoclasts which ultimately enhances the resorption of bone.
In the kidney- It enhances active reabsorption of calcium from distal tubules and the thick ascending limb.
BP000384-HOR-247: Recombinant Human Parathyroid Hormone (PTH) Protein (1-34)
Source: E. coli-derived.
N-terminal sequence analysis: Ser-Val-Ser-Glu-Ile.
Predicted molecular mass: 4117.8 Da .
Purity: > 98% by SDS-PAGE and RP-HPLC.
Formulation: Lyophilized after extensive dialyses against 1.15 mg sodium citrate, sodium chloride 7.31 mg, 0.21 mg citric acid, 0.1117 EDTA-Na2, 0.2 mg Tween 80 and 50 mg Mannitol.
Reconstitution: It is recommended to reconstitute the lyophilized Parathormone in sterile 18 M?-cm H2O not less than 100 ug/ml, which can then be further diluted to other aqueous solutions.
Shipping: The product is shipped with ice pack. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage: Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
12 months from date of receipt, -20 to -70°C as supplied.
1 month, 2 to 8°C under sterile conditions after reconstitution.
3 months, -20 to -70°C under sterile conditions after reconstitution.
Other PTH Proteins:
Recombinant Human PTH Protein (7-34)
Recombinant Human PTH Protein (1-84)
Recombinant Human PTH Protein (1-84)
Recombinant Human PTH Protein
Human PTH Protein (1-34)
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