1. Cytoskeleton
  2. Integrin
  3. LXW7 TFA

LXW7 TFA, a cyclic peptide containing Arg-Gly-Asp (RGD), is an integrin αvβ3 inhibitor. LXW7 has a high binding affinity to αvβ3 integrin with an IC50 of 0.68 μM. LXW7 TFA increases phosphorylation of VEGFR-2 and activation of ERK1/2. Anti-inflammatory effect.

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

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LXW7 TFA Chemical Structure

LXW7 TFA Chemical Structure

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Based on 1 publication(s) in Google Scholar

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Description

LXW7 TFA, a cyclic peptide containing Arg-Gly-Asp (RGD), is an integrin αvβ3 inhibitor. LXW7 has a high binding affinity to αvβ3 integrin with an IC50 of 0.68 μM. LXW7 TFA increases phosphorylation of VEGFR-2 and activation of ERK1/2. Anti-inflammatory effect[1][2][3].

IC50 & Target

IC50: 0.68 μM (αvβ3 integrin)[1]

In Vitro

LXW7 specially binds to αvβ3 integrin (Kd=76±10 nM). LXW7 binds strongly to αvβ3-K562 cells, weakly to αvβ5-K562 cells and αIIbβ3-K562 cells, and no binding to K562 cells. LXW7 has great potential as a highly efficient peptide ligand for targeted imaging and drug delivery[1].
LXW7 acts as a potent and specific endothelial progenitor cells (EPCs) and endothelial cells (ECs) targeting ligand[2].

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

In Vivo

LXW7 (100 μg/kg; intravenous injection) significantly lowers infarct volumes and brain water content (BWC) LXW7-treated rats. The LXW7 treatment lowers the expression of pro-inflammatory cytokines[3].

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

Animal Model: Male Sprague-Dawley rats (250-280 g) subjected to middle cerebral artery occlusion (MCAO)[3]
Dosage: 100 μg/kg
Administration: Intravenous injection
Result: Infarct volumes and BWC were significantly lower compared to those in the MCAO+PBS (control) group.
Molecular Weight

934.92

Formula

C31H49F3N12O14S2

Appearance

Solid

Color

White to off-white

Sequence

Cys-Gly-Arg-Gly-Asp-Asp-Val-Cys-NH2 (Disulfide bridge:Cys1-Cys8)

Sequence Shortening

CGRGDDVC-NH2 (Disulfide bridge:Cys1-Cys8)

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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LXW7 TFA Related Classifications

  • 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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LXW7 TFA
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HY-P0178A
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