1. Peptides

HIV-1 TAT 48-60 

Cat. No.: HY-P1491
Handling Instructions

HIV-1 TAT (48-60) is a cell-penetrating peptide derived from the human immunodeficient virus (HIV)-1 Tat protein residue 48-60. It has been used to deliver exogenous macromolecules into cells in a non-disruptive way.

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

Custom Peptide Synthesis

HIV-1 TAT 48-60 Chemical Structure

HIV-1 TAT 48-60 Chemical Structure

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1 mg USD 90 Get quote
5 mg USD 360 Get quote
10 mg USD 560 Get quote

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Customer Review

  • Biological Activity

  • Protocol

  • Technical Information

  • Purity & Documentation

  • References

Description

HIV-1 TAT (48-60) is a cell-penetrating peptide derived from the human immunodeficient virus (HIV)-1 Tat protein residue 48-60. It has been used to deliver exogenous macromolecules into cells in a non-disruptive way.

In Vitro

Studies show that exogenous Tat protein is able to translocate through the plasma membrane and to reach the nucleus to transactivate the viral genome. The HIV-1 TAT (48-60) peptide, which contains the basic domain of the full length peptide only, retains the full translocation activity and even appears more efficient in terms of nuclear localization when compared with the other active peptides at the standard dose of 1 mM[1]. Cell-penetrating peptides are regarded as promising vectors for intracellular delivery of large, hydrophilic molecules. An apparently endocytotic uptake of HIV-1 TAT (48-60) is observed by confocal laser scanning microscopy[2]. HIV-1 TAT (48-60) induces the formation of rodlike, presumably inverted micelles in DMPC, which may represent intermediates during the translocation across eukaryotic membranes[3].

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
Cell Assay
[1]

HeLa cells are incubated for 24 h with increasing concentrations (0-100 μM) of HIV-1 TAT (48-60). Cell viability is measured following a standard MTT assay procedure and is expressed as the ratio of A570 of cells treated with peptide over control sample[1].

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

References
Molecular Weight

1719.00

Formula

C₇₀H₁₃₁N₃₅O₁₆

Sequence

Gly-Arg-Lys-Lys-Arg-Arg-Gln-Arg-Arg-Arg-Pro-Pro-Gln

Sequence Shortening

GRKKRRQRRRPPQ

Storage

Please store the product under the recommended conditions in the Certificate of Analysis.

Shipping

Room temperature in continental US; may vary elsewhere

  • 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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Inquiry Information

Product Name:
HIV-1 TAT 48-60
Cat. No.:
HY-P1491
Quantity:

HIV-1 TAT 48-60

Cat. No.: HY-P1491