In an article, author is Gao, Han, once mentioned the application of 52-52-8, Recommanded Product: 1-Aminocyclopentanecarboxylic acid, Name is 1-Aminocyclopentanecarboxylic acid, molecular formula is C6H11NO2, molecular weight is 129.157, MDL number is MFCD00001381, category is amides-buliding-blocks. Now introduce a scientific discovery about this category.
Targeting protein surfaces involved in protein-protein interactions by using supramolecular chemistry is a rapidly growing field. NMR spectroscopy is the method of choice to map ligand-binding sites with single-residue resolution by amide chemical shift perturbation and line broadening. However, large aromatic ligands affect NMR signals over a greater distance, and the binding site cannot be determined unambiguously by relying on backbone signals only. We herein employed Lys- and Arg-specific H-2(C) N NMR experiments to directly observe the side-chain atoms in close contact with the ligand, for which the largest changes in the NMR signals are expected. The binding of Lys- and Arg-specific supramolecular tweezers and a calixarene to two model proteins was studied. The H-2(C) N spectra track the terminal CH2 groups of all Lys and Arg residues, revealing significant differences in their binding kinetics and chemical shift perturbation, and can be used to clearly pinpoint the order of ligand binding.
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Reference:
Amide – Wikipedia,
,Amide – an overview | ScienceDirect Topics