Parasin I TFA

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Parasin I TFA; 纯度: 98.27%

Parasin I (TFA) 是一种由 19 个氨基酸残基组成的多肽，源于从鲶鱼皮肤分离到的组蛋白 H2A，具有抗菌的作用。

Parasin I TFAamp;;

Parasin I TFA Chemical Structure

规格 价格 是否有货 数量
500 μg ￥700 In-stock
1 mg ￥1200 In-stock
5 mg ￥4800 In-stock
10 mg ; 询价 ;
50 mg ; 询价 ;

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Parasin I TFA 相关产品

bull;相关化合物库:

  • Natural Product Library Plus
  • Bioactive Compound Library Plus
  • Anti-Infection Compound Library
  • Natural Product Library
  • Antibacterial Compound Library
  • Peptide Library

生物活性

Parasin I (TFA) is a 19-amino acid histone H2A-derived peptide isolated from the skin of the catfish, and shows antimicrobial activity[1].

IC50 Target

Bacterial[1]
分子量

2114.33

Formula

C82H154N34O24.C2HF3O2
Sequence

Lys-Gly-Arg-Gly-Lys-Gln-Gly-Gly-Lys-Val-Arg-Ala-Lys-Ala-Lys-Thr-Arg-Ser-Ser
Sequence Shortening

KGRGKQGGKVRAKAKTRSS
运输条件

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

Sealed storage, away from moisture

Powder -80deg;C 2 years
-20deg;C 1 year

*In solvent : -80deg;C, 6 months; -20deg;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 (lt;0) 1.;;Try to dissolve the peptide in water first.
2.;;If water fails, add NH4OH (lt;50 μL).
3.;;If the peptide still does not dissolve, add DMSO (50-100 μL) to solubilize the peptide.
Positive (gt;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.
参考文献

  • [1]. Koo YS, et al. Structure-activity relations of parasin I, a histone H2A-derived antimicrobial peptide. Peptides. 2008 Jul;29(7):1102-8.