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Updated: Feb 3, 2026

Amide Hydrogen/Deuterium Exchange & MALDI-TOF Mass Spectrometry Analysis of Pak2 Activation
Published on: November 26, 2011
Amide Activation in Ground and Excited States
Ervin Kovács1, Balázs Rózsa2, Attila Csomos3
1Institute of Materials and Environmental Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest H-1117, Hungary. kovacs.ervin@ttk.mta.hu.
New concepts of amidicity and carbonylicity offer a simple, intuitive way to predict amide stability and reactivity. These quasi-thermodynamic data aid chemists in understanding chemical processes and biological mechanisms.
Area of Science:
- Organic Chemistry
- Computational Chemistry
- Biochemistry
Background:
- Amide bonds are fundamental in chemistry and biology.
- Existing models may not fully capture the nuances of amide stability and reactivity.
Purpose of the Study:
- To introduce and validate the concepts of amidicity and carbonylicity for amide bond analysis.
- To provide a practical tool for predicting amide stability and reactivity.
Main Methods:
- Development of two new concepts: amidicity and carbonylicity.
- Application of simple quantum-chemical calculations.
- Demonstration through various chemical reactions and biological processes.
Main Results:
- Amidicity and carbonylicity provide intuitive, quasi-thermodynamic data.
- The concepts accurately describe amide bond strength and activation.
- Successful application to transamidation, acyl transfer, amide reductions, protein splicing, and drug mechanisms.
Conclusions:
- Amidicity and carbonylicity offer a simplified, practical approach to understanding amide chemistry.
- These concepts enhance the prediction of chemical reaction outcomes and biological interactions.
- The framework is applicable to diverse areas, including photo-activation studies.
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