Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (8): 1630.

• Articles • Previous Articles     Next Articles

Calculation of Complexes of the Recombinant Kringle 1 Domain of Human Plasminogen and Its Ligands by ABEEMσπ/MM Method

ZHANG Wen-Long, CHEN Shu-Ling, YANG Zhong-Zhi*   

  1. School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
  • Received:2009-12-11 Online:2010-08-10 Published:2010-08-10
  • Contact: YANG Zhong-Zhi. E-mail: zzyang@lnnu.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 20633050)资助.

Abstract: The semi-flexible docking studies were performed in order to understand the interaction between the recombinant Kringle 1 domain of human plasminogen and five ligands[ε-aminocaproic acid(EACA), trans-4-(aminomethyl) cyclohexane-1-carboxylic acid(AMCHA), L-lysine(Lys), 7-aminoheptanoic acid(7-AHA) and benzylamine] by means of ABEEMσπ/MM. The results show that the simulated structure is very close to the crystal structure. The calculated binding energies of the five complexes are in the order of AMCHA>EACA>7-AHA>Lys>Benzylamine, which is in agreement with the value of the equilibrium association constant(Ka) from experiment.

Key words: ABEEMσπ/MM method, Recombinant Kringle 1 domain of human plasminogen, Binding energy, Hydrogen bond

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