2. Cytoskeleton
  3. Integrin
  4. GRGDSPK

GRGDSPK (EMD 56574) is a peptide incluing Arg-Gly-Asp (RGD). GRGDSPK (EMD 56574) is an competitive and reversible inhibitory peptide for inhibiting integrin-fibronectin binding. GRGDSPK is used to study the role of integrins in bone formation and resorption.

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

Custom Peptide Synthesis

GRGDSPK Chemical Structure

GRGDSPK Chemical Structure

CAS No. : 111119-28-9

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Customer Review

Based on 1 publication(s) in Google Scholar

Other Forms of GRGDSPK:

GRGDSPK Related Antibodies

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αvβ1 αvβ3 αvβ5 αvβ6 αvβ8 α5β1 α1β1 α2β1 α4β1 α9β1 αIIbβ3 α4β7 αLβ2

  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

GRGDSPK (EMD 56574) is a peptide incluing Arg-Gly-Asp (RGD). GRGDSPK (EMD 56574) is an competitive and reversible inhibitory peptide for inhibiting integrin-fibronectin binding. GRGDSPK is used to study the role of integrins in bone formation and resorption[1][2].

In Vitro

GRGDSPK (EMD 56574; RGD; 0.1-50 μM; for 4 days) inhibits mineralization in a dose-dependent manner as determined by measuring calcium content and 70 bonehnit area of tissue in parietal bones 18 days old isolated from pregnant Sprague-Dawley rats[1].
GRGDSPK (10, 50 μM; for 4 days) dramatically alteres bone morphology, with a disruption of osteoblast and mineralized matrix organization[1].
GRGDSPK (RGD; 250 μM), added to the medium, effectively blocks integrin-fibronectin binding and significantly increases the average size of wild-type cell aggregates[2].
When GRGDSPK (250 μM) is added, wild-type mesendodermal progenitors exhibits strongly reduced adhesion forces and work, indicating that the detachment parameters recorded are specific for fibronectin and that integrins expressed in mesendodermal progenitors are involved[2].
GRGDSPK (RGD-containing, 1.5 mM, 1.0 mM, and 0.5 mM) and RGD-mod-ified peptides impair the ability of sperm to fertilizebovine oocytes, illustrated by a reduction in cleavage in a dose-dependent manner[3].

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

GRGDSPK Related Antibodies
Molecular Weight

715.76

Formula

C28H49N11O11
CAS No.
Appearance

Solid

Color

White to off-white

Sequence

Gly-Arg-Gly-Asp-Ser-Pro-Lys
Sequence Shortening

GRGDSPK
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
Cell Assay
[1]

Proliferation assays are carried out in 48-well cell culture dishes coated with OCP or HL. In proliferation assays, 7.25×103 cells in 0.5 mL of culture medium are seeded in a 48-well dish. Culture medium is changed every 3 days. After 1, 6, 12, and 18 days of culture, plates are washed thrice with PBS to remove unattached cells, and attached cells are collected by trypsinization. The number of cells is counted using a hemocytometer.

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

Keywords:

GRGDSPK111119-28-9EMD 56574EMD56574EMD-56574IntegrinArg-Gly-AspRGDintegrinfibronectinbindingboneformationresorptionInhibitorinhibitorinhibit

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