Thermodynamic and hydrodynamic study of Bence-Jones proteins
Autor: | V. S. Khristoforov, O. P. Bliznyukov, V. M. Tishchenko |
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Rok vydání: | 2009 |
Předmět: | |
Zdroj: | Molecular Biology. 43:134-141 |
ISSN: | 1608-3245 0026-8933 |
DOI: | 10.1134/s002689330901018x |
Popis: | Four Bence-Jones proteins were studied under physiological conditions (10 mM phosphate buffer solution (pH 7.0) and 100 mM NaCl) by the circular dichroism, fluorescence, and analytical centrifugation methods. Combined analysis of the optical melting curves for the proteins and their fragments demonstrated that the stability of VAD protein and its constant half was decreased as compared with the other Bence-Jones proteins. This was correlated with the ability of both the whole protein and its constant (but not variable) part to form amyloid fibrils. The data on the correlation of the decreased stability with an abnormal interaction of two constant CL domains are reported. |
Databáze: | OpenAIRE |
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