Xenopsin TFA
Xenopsin TFA, a neurotensin-like octapeptide from Xenopus laevis skin. Xenopsin TFA is an inhibitor of Tetragastrin stimulated gastric acid secretion.
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- Formule: C49H74F3N13O12
- Masse moléculaire:1094.19
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Stockage:
Please store the product under the recommended conditions in the Certificate of Analysis.
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
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Activité biologique
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Chemical Information
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Solvant et solubilité
- Pureté et documentation
- Références
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Help & FAQs
Activité biologique
Description
In Vitro
Chemical Information
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Masse moléculaire 1094.19
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Formule C49H74F3N13O12
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Sequence
{Glp}-Gly-Lys-Arg-Pro-Trp-Ile-Leu
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Sequence Shortening
{Glp}-GKRPWIL
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Livraison
Room temperature in continental US; may vary elsewhere.
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Stockage
Please store the product under the recommended conditions in the Certificate of Analysis.
Solvant et solubilité
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. |
Pureté et documentation
Références
[1]. Sures I, et al. Xenopsin: the neurotensin-like octapeptide from Xenopus skin at the carboxyl terminus of its precursor. Proc Natl Acad Sci U S A. 1984 Jan;81(2):380-4. [Content Brief]
[2]. Zinner MJ, et al. Effect of xenopsin on blood flow, hormone release, and acid secretion. Am J Physiol. 1982 Sep;243(3):G195-9. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Xenopsin TFA Related Classifications
HY-P0253A Related Classifications
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