Chemical Research in Chinese Universities

, Volume 33, Issue 5, pp 731–735 | Cite as

Insights into the interactions between corrinoid iron-sulfur protein and methyl transferase from human pathogen Clostridium difficile

  • Yaozhu Wei
  • Xiangshi Tan


The human pathogen Clostridium difficile infection(CDI) is one of the most important healthcare-associated infections. Methyltransferase(MeTrCd) and corrinoid iron-sulfur protein(CoFeSPCd) are two key proteins in the acetyl-coenzyme A synthesis pathway of Clostridium difficile, which is essential for the survival of the pathogen and is absent in humans. Hence, the interaction between MeTrCd and CoFeSPCd can become innovative targets for the treatment of human CDI. In this study, the interaction between MeTrCd and CoFeSPCd was verified by fluorescence resonance energy transfer measurements. The influence of the interaction on the tertiary structure of MeTrCd and CoFeSPCd was studied by ANS-labeled fluorescence measurements. Molecular docking was also performed to understand the mechanism of the protein interactions. These results provide a molecular basis for innovative drug design and development to treat human CDI.


Corrinoid iron-sulfur protein Methyl transferase Clostridium difficile Protein interaction 


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Copyright information

© Jilin University, The Editorial Department of Chemical Research in Chinese Universities and Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  1. 1.Shanghai Key Laboratory of Chemical Biology for Protein Research, Department of ChemistryFudan UniversityShanghaiP. R. China

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