In line with strong and stable interactions of His1-Ala2 of GLP-1 compared with transient interactions of His1-Gly2 in exendin-4, truncation of these two N-terminal residues reduces GLP-1 affinity by 100300 fold, whereas for exendin-4, this has no effect, albeit, for both peptides, these residues are required for GLP-1R-mediated cAMP production 22,23,24,25
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It has been studied for its potential healing properties in animal models, showing promise in the repair of various tissues, including muscles, tendons, and bones
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The comparison clarifies GHK-Cus realistic place
The metal-chelating resin Chelex 100 was from BioRad