Abstract
Phospholamban (PLN) is a key regulatory protein involved in cardiac calcium signaling through the pumping of cytoplasmic Ca2+ into the sarcoplasmic reticulum (SR). Recent systems-level studies have focused on integrating quantitative data (e.g. protein expression levels) for a better understanding of cardiac systems biology. In this view, we developed a capillary electrophoresis (CE) based immunoprecipitation method for the measurement of phospho-PLN (ser 16) in cardiomyocytes (HL-1 cell line). Dose-dependent isoproterenol (Iso) treated cells were analyzed using CE, and the phospho-PLN levels were quantified using specific polyclonal antibodies. The CE method employed was accurate, quick and easier compare to other techniques and the results are useful for the subsequent computational systems biology research.
Original language | English |
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Pages (from-to) | 838-844 |
Number of pages | 7 |
Journal | Journal of Biochemical and Biophysical Methods |
Volume | 70 |
Issue number | 6 |
DOIs | |
State | Published - 24 Apr 2008 |
Bibliographical note
Funding Information:The authors wish to thank Mrs Anne J. Charlton for English proof reading and helpful comments on the manuscript. This work was supported by the grants from the Korea Ministry of Science and Technology (Systems Biology Research Grant; 2N29550).