1. GPCR/G Protein
    Immunology/Inflammation
  2. CXCR

ALX 40-4C Trifluoroacetate 

Cat. No.: HY-P7061A Purity: 98.15%
Handling Instructions

ALX 40-4C Trifluoroacetate is a small peptide inhibitor of the chemokine receptor CXCR4, inhibits SDF-1 from binding CXCR4 with a Ki of 1 μM, and suppresses the replication of X4 strains of HIV-1; ALX 40-4C Trifluoroacetate also acts as an antagonist of the APJ receptor, with an IC50 of 2.9 μM. Sequence: Ac-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-NH2;Ac-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-NH2.

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

Custom Peptide Synthesis

ALX 40-4C Trifluoroacetate Chemical Structure

ALX 40-4C Trifluoroacetate Chemical Structure

Size Price Stock Quantity
1 mg USD 240 In-stock
Estimated Time of Arrival: December 31
5 mg USD 850 In-stock
Estimated Time of Arrival: December 31
10 mg   Get quote  
50 mg   Get quote  

* Please select Quantity before adding items.

Customer Review

Other Forms of ALX 40-4C Trifluoroacetate:

View All CXCR Isoform Specific Products:

  • Biological Activity

  • Protocol

  • Technical Information

  • Purity & Documentation

  • References

Description

ALX 40-4C Trifluoroacetate is a small peptide inhibitor of the chemokine receptor CXCR4, inhibits SDF-1 from binding CXCR4 with a Ki of 1 μM, and suppresses the replication of X4 strains of HIV-1; ALX 40-4C Trifluoroacetate also acts as an antagonist of the APJ receptor, with an IC50 of 2.9 μM. Sequence: Ac-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-NH2;Ac-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-{d-Arg}-NH2.

IC50 & Target

SDF-1-CXCR4

1 μM (Ki)

APJ receptor

2.9 μM (IC50)

In Vitro

ALX 40-4C Trifluoroacetate is a small peptide inhibitor of the chemokine receptor CXCR4, interacts with the second extracellular loop of CXCR4 and inhibits infection exclusively by blocking direct virus-CXCR4 interactions[1]. ALX 40-4C shows potent anti HIV-1 effect, with EC50s of 0.34 ± 0.04 μg/mL, 0.37 ± 0.01 μg/mL for HIV-1 NL4-3, NC10, and 0.18 ± 0.11 μg/mL, 0.06 ± 0.02 μg/mL for HIV-1 HXB2, HC43, respectively, and with a CC50 (50% cytotoxic concentration) of 21 μg/mL. ALX 40-4C also exhibits potent activity against env-recombinant HIV, with EC50s of 0.38 ± 0.01 μg/mL, 0.40 ± 0.0 μg/mL for HIV-1 NL4-3 env, NC10, and 1.34 ± 0.06 μg/mL, 1.02 ± 0.29 μg/mL for HIV-1 HXB2 env, HC43, and a CC50 of 21 μg/mL[2]. ALX 40-4C binds to APJ with an IC50 of 2.9 μM. ALX 40-4C inhibits HIV-1 gp120/APJ-mediated cell membrane fusion, with an IC50s of 3.41 μM and 3.1 μM for IIIB isolate and 89.6 isolate, respectively[3].

Solvent & Solubility
In Vitro: 

10 mM in H2O

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 0.6334 mL 3.1670 mL 6.3341 mL
5 mM 0.1267 mL 0.6334 mL 1.2668 mL
10 mM 0.0633 mL 0.3167 mL 0.6334 mL
*Please refer to the solubility information to select the appropriate solvent.
References
Kinase Assay
[3]

The stably transfected cells are harvested in PBS (Ca2+ and Mg2+ free) plus 0.5 nM EDTA and washed twice with PBS. Ligand binding experiments are performed using a single concentration (0.2 nM) of 125I-Apelin-13 in the absence or presence of increasing concentrations of unlabeled Apelin-13 or ALX 40-4C in a final volume of 100 μL of binding buffer (50 nM Hepes, pH 7.4, 1 nM CaCl2, 5 nM MgCl2, 0.1% bovine serum albumin) containing 5 × 105 cells. Nonspecific binding is determined by the addition of 1 μM unlabeled Apelin-13. Samples are incubated for 90 min at room temperature. The incubation is terminated by separating the cells from the binding buffer by centrifugation and washing once with 500 μL of cold binding buffer. Bound ligands are determined by counting gamma emissions. At least three independent experiments are performed[3].

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

References
Molecular Weight

1578.76

Formula

C₅₈H₁₁₄F₃N₃₇O₁₂

Storage
Powder -20°C 3 years
In solvent -80°C 6 months
  -20°C 1 month
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

Inquiry Online

Your information is safe with us. * Required Fields.

Product name

 

Salutation

Applicant name *

 

Email address *

Phone number *

 

Organization name *

Country or Region *

 

Requested quantity *

Remarks

Bulk Inquiry

Inquiry Information

Product Name:
ALX 40-4C Trifluoroacetate
Cat. No.:
HY-P7061A
Quantity:

ALX 40-4C Trifluoroacetate

Cat. No.: HY-P7061A