Calcitonin (human) 是一种降钙激素。Calcitonin 可降低血钙水平并抑制骨吸收，可用于高钙血症或骨质疏松症的研究。
| 生物活性 | Calcitonin(human) is ahypocalcemic hormone.Calcitonincan lower blood calcium levels and inhibit bone resorption.Calcitonincan be used in hypercalcemia or osteoporosis research[1][2][3]. |
体外研究
(In Vitro) | Calcitonin shows a potent inhibitory action on osteoclast mediated bone resorption[1].
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体内研究
(In Vivo) | Calcitonin (oral gavage; 2 mg/kg; once daily; 9 w) can inhibit cartilage degradation and prevent cartilage erosion[3].
| Animal Model: | Female Sprague-Dawley rats[3] | | Dosage: | 2 mg/kg | | Administration: | Oral gavage; 2 mg/kg; once daily; 9 weeks | | Result: | Suppressed ovariectomy-induced cartilage degradation (P<0.001) compared with the carrier control.
Prevented cartilage erosion compared with treatment with the carrier alone (P<0.01), and the extent of erosions was comparable with that in sham-operated animals. |
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| 分子量 | |
| 性状 | |
| Formula | |
| CAS 号 | |
| Sequence | Cys-Gly-Asn-Leu-Ser-Thr-Cys-Met-Leu-Gly-Thr-Tyr-Thr-Gln-Asp-Phe-Asn-Lys-Phe-His-Thr-Phe-Pro-Gln-Thr-Ala-Ile-Gly-Val-Gly-Ala-Pro-NH2 (Disulfide bridge:Cys1-Cys7) |
| Sequence Shortening | CGNLSTCMLGTYTQDFNKFHTFPQTAIGVGAP-NH2 (Disulfide bridge:Cys1-Cys7) |
| 运输条件 | Room temperature in continental US; may vary elsewhere. |
| 储存方式 | Sealed storage, away from moisture | Powder | -80°C | 2 years | | -20°C | 1 year |
*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture) |
| Solvent & Solubility | In Vitro: H2O Peptide Solubility and Storage Guidelines: 1. Calculate the length of the peptide. 2. Calculate the overall charge of the entire peptide according to the following table: | | Contents | Assign value | | Acidic amino acid | Asp (D), Glu (E), and the C-terminal -COOH. | -1 | | Basic amino acid | Arg (R), Lys (K), His (H), and the N-terminal -NH2 | +1 | | Neutral amino acid | Gly (G), Ala (A), Leu (L), Ile (I), Val (V), Cys (C), Met (M), Thr (T), Ser (S), Phe (F), Tyr (Y), Trp (W), Pro (P), Asn (N), Gln (Q) | 0 |
3. Recommended solution: | Overall charge of peptide | Details | | Negative (<0) | 1. Try to dissolve the peptide in water first.
2. If water fails, add NH4OH (<50 μL).
3. If the peptide still does not dissolve, add DMSO (50-100 μL) to solubilize the peptide. | | Positive (>0) | 1. Try to dissolve the peptide in water first.
2. If water fails, try dissolving the peptide in a 10%-30% acetic acid solution.
3. If the peptide still does not dissolve, try dissolving the peptide in a small amount of DMSO. | | Zero (=0) | 1. Try to dissolve the peptide in organic solvent (acetonitrile, methanol, etc.) first.
2. For very hydrophobic peptides, try dissolving the peptide in a small amount of DMSO, and then dilute the solution with water to the desired concentration. |
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