Glu-Arg
Glu-Arg is a dipeptide linked by L-glutamic acid and L-arginine. Glu-Arg contributes to the construction of the hydrophobic network and maintenance of stability of mouse cAMP-dependent protein kinase; it acts as a core hub connecting the activation segment and the GHI subdomain in eukaryotic protein kinases, and promotes signal transmission between elements and within enzymes. As a salt bridge, Glu-Arg regulates the formation and unfolding rates of α-helices, and its optimized spatial conformation is conducive to the stability and folding rate of α-helices. Glu-Arg induces concentration-dependent intracellular calcium changes in cultured human fungiform taste bud cells.
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- CAS No.: 7219-59-2
- Formula: C11H21N5O5
- Molecular Weight:303.32
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
Glu-Arg salt bridges in the (i+4) ER orientation increase the α-helix folding rate by more than 40% and slow down the unfolding process compared with other Glu-Arg peptide conformations, while salt bridges in the (i+3) RE orientation reduce the folding rate[2].
Glu-Arg (ER) (5-500 μM; 1 min) induces a concentration-dependent intracellular calcium response in cultured human fungiform taste bud (HBO) cells with an EC50 of 114 μM, but does not enhance NaCl-evoked responses in these cells at concentrations of 50 μM or 100 μM[3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 7219-59-2
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Molecular Weight 303.32
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Formula C11H21N5O5
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Sequence
Glu-Arg
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Sequence Shortening
ER
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Purity & Documentation
References
[2]. Meuzelaar H, et al. Influence of Glu/Arg, Asp/Arg, and Glu/Lys Salt Bridges on α-Helical Stability and Folding Kinetics. Biophysical journal. 2016 Jun 07;110(11):2328-2341. [Content Brief]
[3]. Xu JJ, et al. Arginyl dipeptides increase the frequency of NaCl-elicited responses via epithelial sodium channel alpha and delta subunits in cultured human fungiform taste papillae cells. Scientific reports. 2017 Aug 08;7(1):7483. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)