Activation free energy of Zn(II), Co(II) binding to metallo-β-lactamase ImiS
Activation free energy of Zn(II), Co(II) binding to metallo-β-lactamase ImiS
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Zn(II)、Co(II) 与金属-β-内酰胺酶 ImiS 结合的激活自由能
DOI:
10.1016/j.cclet.2014.06.024
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发表时间:
2014-10
影响因子:
9.1
通讯作者:
Ke-Wu Yang
中科院分区:
文献类型:
--
作者:
Pei He;Yun-Hua Guo;Cong-Jun Liu;Ke-Wu Yang
In an effort to understand the recombination of a B2 metallo-β-lactamase (MβL), the binding of metals to apo-ImiS was studied by isothermal titration calorimetry and fluorescence spectra. The binding of Zn (II), Co (II) to apo-ImiS resulted in activation free energies Δ G≠ θ values of 93.719 and 92.948 kJ mol− 1, respectively, and increasing of fluorescence intensity at maxima emission of 340 nm.
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