1. Anti-infection
  2. Bacterial Antibiotic
  3. PGLa TFA

PGLa TFA, a 21-residue peptide, is an antimicrobial peptide. PGLa TFA is a member of the magainin family of antibiotic peptides found in frog skin and its secretions.

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

Custom Peptide Synthesis

PGLa TFA Chemical Structure

PGLa TFA Chemical Structure

Size Price Stock Quantity
500 μg USD 228 In-stock
1 mg USD 408 In-stock
5 mg USD 1320 In-stock
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This product is a controlled substance and not for sale in your territory.

Customer Review

Based on 1 publication(s) in Google Scholar

Other Forms of PGLa TFA:

Top Publications Citing Use of Products
  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

PGLa TFA, a 21-residue peptide, is an antimicrobial peptide. PGLa TFA is a member of the magainin family of antibiotic peptides found in frog skin and its secretions[1].

IC50 & Target

Anti-bacteria[1]

In Vitro

PGLa is a peptide starting with a glycine and ending with a leucine amide[1].
PGLa is bacteriostatic against both Gram-positive and Gram-negative bacteria with MIC values of 64 and 32 mg/L against S. aureus and E. coli, respectively[2].

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

Clinical Trial
Molecular Weight

2082.47

Formula

C90H163F3N26O24S

Appearance

Solid

Color

White to off-white

Sequence

Gly-Met-Ala-Ser-Lys-Ala-Gly-Ala-Ile-Ala-Gly-Lys-Ile-Ala-Lys-Val-Ala-Leu-Lys-Ala-Leu-NH2

Sequence Shortening

GMASKAGAIAGKIAKVALKAL-NH2

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Sealed storage, away from moisture

Powder -80°C 2 years
-20°C 1 year

*In solvent : -80°C, 6 months; -20°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 (<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.
Purity & Documentation
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
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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Product Name:
PGLa TFA
Cat. No.:
HY-P0274A
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