کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
221167 | 463376 | 2006 | 7 صفحه PDF | دانلود رایگان |
Native and denatured states of bovine serum albumin (BSA) were studied by d.c. polarographic and voltammetric Brdicka catalytic responses (BCR) in cobalt-containing solution and by constant current chronopotentiometric stripping analysis (CPSA) in borate buffer, pH 9.3. We found that 90 nM denatured BSA produced catalytic peak H (around − 1.8 V vs. Ag/AgCl/3 M KCl). This peak was about 50-fold higher than the native protein under the same conditions. Qualitatively similar results were obtained also with other proteins in native and denatured states, such as human serum albumin, γ-globulin, myoglobin and α-crystallin. 2 nM denatured BSA produced a well-developed CPS peak (at accumulation time 5 min) while native BSA yielded almost no signal under the same conditions.
Journal: Journal of Electroanalytical Chemistry - Volume 593, Issues 1–2, 1 August 2006, Pages 172–178