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Updated: May 8, 2026

Peptide-based Identification of Functional Motifs and their Binding Partners
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ペプトイドとタンパク質の結合相互作用を確立するためのNMRガイド研究

Christine S Muli1, Dan Xie1, Carol Beth Post1

  • 1Borch Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, 575 West Stadium Avenue, West Lafayette, Indiana 47907, United States.

Journal of the American Chemical Society
|July 15, 2025
PubMed
まとめ

研究者は,ペプトイドKDT-11に溶解性タグを加えることで,Rpn-13プロテアソームサブユニットにおける潜在的な阻害部位の詳細な構造分析と識別を可能にしました.

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¹H NMR Signal Multiplicity: Splitting Patterns

When protons A and X are coupled, their nuclear spin energy levels are slightly modified. This is because the energy required to excite proton A to a spin state parallel to proton X is slightly different from the energy required for it to become anti-parallel to spin X. Consequently, there are two possible excitation frequencies for A (A1 and A2), depending on the spin state of X, and vice versa. The mutual nature of coupling implies that the difference between frequencies A1 and A2, indicated...
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Homonuclear correlation spectroscopy (COSY) is a powerful technique used in Nuclear Magnetic Resonance (NMR) spectroscopy to study the correlations between nuclei of the same type within a molecule. It provides information about scalar couplings between adjacent nuclei, which helps determine connectivity and structural information. There are several COSY variants, each with its unique strengths and experimental parameters.
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