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Related Concept Videos

Ligand Binding Sites02:40

Ligand Binding Sites

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Proteins are dynamic macromolecules that carry out a wide variety of essential processes; however, the activities of most proteins depend on their interactions with other molecules or ions, known as ligands.
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
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Related Experiment Video

Updated: Mar 29, 2026

Site-Specific Lysine Lactylation via Genetic Code Expansion in E. coli and Mammalian Cells
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191

KAHA Ligation at Serine.

Yi-Ming Li1, Yi-Chao Huang2, Lei Liu3

  • 1School of Medical Engineering, Hefei University of Technology, Hefei, Anhui, 230009, China. ymli@hfut.edu.cn.

Chembiochem : a European Journal of Chemical Biology
|November 25, 2015
PubMed
Summary
This summary is machine-generated.

The Bode group developed oxazetidine-assisted KAHA ligation for efficient peptide ligation at serine residues. This method advances chemical protein synthesis for biological research.

Keywords:
KAHA ligationchemical protein synthesisligation reactionsproteinssynthetic methods

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Area of Science:

  • Biochemistry
  • Organic Chemistry
  • Chemical Biology

Background:

  • Peptide synthesis is crucial for biological studies.
  • Native chemical ligation is a key technique for protein synthesis.
  • Ligation at serine residues presents unique challenges.

Purpose of the Study:

  • To develop an efficient method for peptide segment ligation at native serine residues.
  • To enable the chemical synthesis of complex proteins.
  • To overcome limitations of existing ligation strategies.

Main Methods:

  • Development of oxazetidine-assisted KAHA ligation.
  • Application of the method to peptide segment ligation at serine residues.

Main Results:

  • Demonstrated efficient peptide ligation at native serine residues.
  • Established a novel strategy for chemical protein synthesis.
  • Overcame challenges associated with serine ligation.

Conclusions:

  • Oxazetidine-assisted KAHA ligation is a powerful tool for peptide synthesis.
  • This method facilitates the preparation of difficult-to-synthesize proteins.
  • The strategy has significant implications for biological studies requiring complex protein structures.