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  2. Neuronal Signaling
  3. Amyloid-β
  4. β-Amyloid (12-20)

β-Amyloid (12-20) 是 β-Amyloid 的多肽片段。

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Custom Peptide Synthesis

β-Amyloid (12-20)

β-Amyloid (12-20) Chemical Structure

CAS No. : 134649-29-9

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規(guī)格 價(jià)格 是否有貨 數(shù)量
1 mg ￥550
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5 mg ￥1400
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10 mg ￥2250
In-stock
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  • 生物活性

  • 純度 & 產(chǎn)品資料

  • 參考文獻(xiàn)

生物活性

β-Amyloid (12-20) is a peptide fragment of β-Amyloid.

體外研究
(In Vitro)

β-Amyloid Aggregation Guidelines (Following is our recommended protocol. This protocol only provides a guideline, and should be modified according to your specific needs).
1. Solid Aβ peptide was dissolved in cold hexafluoro-2-propanol (HFIP). The peptide was incubated at room temperature for at least 1h to establish monomerization and randomization of structure.
2. The HFIP was removed by evaporation, and the resulting peptide was stored as a film at -20 or -80 °C.
3. The resulting film was dissolved in anhydrous DMSO at 5 mM and then diluted into the appropriate concentration and buffer (serum- and phenol red-free culture medium) with vortexing.
4. Next, the solution was aged 48h at 4-8 °C. The sample was then centrifuged at 14000g for 10 min at 4-8 °C; the soluble oligomers were in the supernatant. The supernatant was diluted 10-200-fold for experiments.
Methods vary depends on the downstream applications.

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

1154.36

Formula

C57H83N15O11
CAS 號
性狀

固體

顏色

White to off-white

Sequence Shortening

VHHQKLVFF
運(yùn)輸條件

Room temperature in continental US; may vary elsewhere.
儲(chǔ)存方式

Sealed storage, away from moisture and light, under nitrogen

Powder -80°C 2 years
-20°C 1 year

*該產(chǎn)品在溶液狀態(tài)不穩(wěn)定，建議您現(xiàn)用現(xiàn)配，即刻使用。

Solvent & Solubility
細(xì)胞實(shí)驗(yàn)： 

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(xiàn)

  • 摩爾計(jì)算器

  • 稀釋計(jì)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：
β-Amyloid (12-20)
目錄號：
HY-P1880
需求量：
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