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  4. Xenopsin TFA

Xenopsin TFA  (Synonyms: 爪蟾肽三氟乙酸盐)

目录号: HY-P0253A
产品使用指南

Xenopsin TFA 是一种来自非洲爪蟾皮肤的神经降压素样八肽。Xenopsin TFA 抑制胃泌素刺激的胃酸分泌。

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Custom Peptide Synthesis

Xenopsin TFA Chemical Structure

Xenopsin TFA Chemical Structure

1.  客户无需承担相应的运输费用。

2.  同一机构(单位)同一产品试用装仅限申领一次,同一机构(单位)一年内

     可免费申领三个不同产品的试用装。

3.  试用装只面向终端客户

规格 是否有货
50 mg   询价  
100 mg   询价  
250 mg   询价  

* Please select Quantity before adding items.

Xenopsin TFA 的其他形式现货产品:

Customer Review

Other Forms of Xenopsin TFA:

  • 生物活性

  • 纯度 & 产品资料

  • 参考文献

生物活性

Xenopsin TFA, a neurotensin-like octapeptide from Xenopus laevis skin[1]. Xenopsin TFA is an inhibitor of Tetragastrin stimulated gastric acid secretion[2].

体外研究
(In Vitro)

Xenopsin is a biologically active octapeptide found in skin extracts from Xenopus laevis[1]. Xenopsin produces a significant inhibition of tetragastrin-stimulated gastric acid output[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

分子量

1094.19

Formula

C49H74F3N13O12

Sequence

{Glp}-Gly-Lys-Arg-Pro-Trp-Ile-Leu

Sequence Shortening

{Glp}-GKRPWIL

中文名称

爪蟾肽三氟乙酸盐

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

Please store the product under the recommended conditions in the Certificate of Analysis.

Solvent & Solubility
细胞实验: 

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.
纯度 & 产品资料
参考文献
  • 摩尔计算器

  • 稀释计算器

The molarity calculator equation

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

质量   浓度   体积   分子量 *
= × ×

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

浓度 (start) × 体积 (start) = 浓度 (final) × 体积 (final)
× = ×
C1   V1   C2   V2
Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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产品名称:
Xenopsin TFA
目录号:
HY-P0253A
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