کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1258022 | 971594 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermodynamic study of CNâ ion inhibition of Jack bean urease using the extended solvation theory
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Cyanide ion was studied as an inhibitor of Jack bean urease at 300 K in 30 mmol/L tris buffer, pH 7. The inhibition was investigated by isothermal titration calorimetry (ITC). The extended solvation model was used for CNâ + JBU interaction over the whole range of CNâ concentrations. The binding parameters recovered from the solvation model were attributed to the cyanide ion interaction. It was found that cyanide ion acted as a non-cooperative inhibitor of urease, and there is a set of 12 ± 0.12 identical and independent binding sites for CNâ ions. The dissociation equilibrium constant is 749.99 μmol/L. The molar enthalpy of binding is ÎH = â13.60 kJ molâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Chemical Letters - Volume 20, Issue 11, November 2009, Pages 1389-1392
Journal: Chinese Chemical Letters - Volume 20, Issue 11, November 2009, Pages 1389-1392
نویسندگان
G. Rezaei Behbehani, A.A. Saboury, M. Mohebbian, S. Tahmasbi Sarvestani, M. Poorheravi,