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Quaternary structural analysis of nucleoside diphosphate kinases using capillary electrophoresis

Title
Quaternary structural analysis of nucleoside diphosphate kinases using capillary electrophoresis
Authors
Heo Y.J.Kim S.Y.Kim E.Lee K.-J.
Ewha Authors
이공주
SCOPUS Author ID
이공주scopus
Issue Date
1997
Journal Title
Journal of Chromatography A
ISSN
0021-9673JCR Link
Citation
vol. 781, no. 1-2, pp. 251 - 261
Indexed
SCI; SCIE; SCOPUS scopus
Abstract
Capillary electrophoresis was used to monitor the quaternary structure and structural changes by denaturants of nucleoside diphosphate kinase (NDP kinase). NDP kinase from human erythrocyte consists of two kinds of polypeptide chains: A (Nm23-H1) and B (Nm23-H2), which are the products of nm23-H1 and -H2 genes, respectively. Structural characteristics of native NDP kinase, recombinant Nm23-H1 and -H2 were examined using capillary electrophoresis employing high pH running buffer in an uncoated fused-silica capillary as a separation column. The results were compared with those of the conventional sodium dodecyl sulfate and non-denaturing polyacrylamide gel electrophoresis. It shows that capillary electrophoresis is a possible tool to investigate protein structure, including the quaternary structure. This protocol was applied to the investigation of the denaturation process of each enzyme by denaturants (6 M urea or heating to 70°C) and to the monitoring of the interaction between denatured Nm23-H1 and -H2. The structural information of NDP kinase obtained by analysis using capillary electrophoresis is valuable for understanding its suggested biological function as a tumor metastasis suppressor and c-myc transcription factor, etc.
DOI
10.1016/S0021-9673(97)00500-1
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약학대학 > 약학과 > Journal papers
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