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  2. 多肽產(chǎn)品
  3. 多肽及其衍生物
  4. 激素肽與神經(jīng)肽
  5. Somatostatin-25

Somatostatin-25 是一種內(nèi)源性神經(jīng)肽激素，能夠抑制生長激素的分泌。

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Custom Peptide Synthesis

Somatostatin-25 Chemical Structure

Somatostatin-25 Chemical Structure

CAS No. : 76461-17-1

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MCE 顧客使用本產(chǎn)品發(fā)表的 1 篇科研文獻

  • 生物活性

  • 純度 & 產(chǎn)品資料

  • 參考文獻

生物活性

Somatostatin-25 is a endogenous neuropeptide hormone that shows inhibitory activity against secretion of growth hormone.

體外研究
(In Vitro)

Somatostatin-25 (0.1 pM-1 nM) significantly inhibits secretion of growth hormone in the in vitro system, and is 3-14 times more effective than the tetradecapeptide. Somatostatin-25 (0.1 nM-1pM) also inhibits secretion of growth hormone induced by the addition of prostaglandin 2 (PGE2). However, Somatostatin-25 shows no effect on the secretion of prolactin[1].

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

2876.30

Formula

C127H191N37O34S3
CAS 號
Sequence

Ser-Asn-Pro-Ala-Met-Ala-Pro-Arg-Glu-Arg-Lys-Ala-Gly-Cys-Lys-Asn-Phe-Phe-Trp-Lys-Thr-Phe-Thr-Ser-Cys (Disulfide bridge: Cys14-Cys25)
Sequence Shortening

SNPAMAPRERKAGCKNFFWKTFTSC (Disulfide bridge: Cys14-Cys25)
運輸條件

Room temperature in continental US; may vary elsewhere.
儲存方式

Please store the product under the recommended conditions in the Certificate of Analysis.
Solvent & Solubility
細胞實驗： 

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.
純度 & 產(chǎn)品資料
參考文獻

  • 摩爾計算器

  • 稀釋計算器

The molarity calculator equation

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

質(zhì)量   濃度   體積   分子量 *
= × ×

The dilution calculator equation

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

This equation is commonly abbreviated as: C1V1 = C2V2

濃度 (start) × 體積 (start) = 濃度 (final) × 體積 (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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產(chǎn)品名稱：
Somatostatin-25
目錄號：
HY-P1547
需求量：