1. Anti-infection
  2. Bacterial
  3. Parasin I (TFA)

Parasin I (TFA) 

Cat. No.: HY-P0324A Purity: 98.27%
Handling Instructions

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

For research use only. We do not sell to patients.

Custom Peptide Synthesis

Parasin I (TFA) Chemical Structure

Parasin I (TFA) Chemical Structure

Size Price Stock Quantity
10 mM * 1 mL in Water USD 2679 In-stock
Estimated Time of Arrival: December 31
500 μg USD 84 In-stock
Estimated Time of Arrival: December 31
1 mg USD 144 In-stock
Estimated Time of Arrival: December 31
5 mg USD 576 In-stock
Estimated Time of Arrival: December 31
10 mg   Get quote  
50 mg   Get quote  

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Customer Review

Based on 1 publication(s) in Google Scholar

Other Forms of Parasin I (TFA):

Top Publications Citing Use of Products
  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

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]

Molecular Weight

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

Shipping

Room temperature in continental US; may vary elsewhere

Storage
Powder -80°C 2 years
  -20°C 1 year
In solvent -80°C 6 months
  -20°C 1 month
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 (<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.
References
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  • Molarity Calculator

  • Dilution Calculator

The molarity calculator equation

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

Mass   Concentration   Volume   Molecular Weight *
= × ×

The dilution calculator equation

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

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Product Name:
Parasin I (TFA)
Cat. No.:
HY-P0324A
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