【摘 要】
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Two-dimensional electrophoresis(2-DE) of protein extracted and purified from Alexandrium sp. LC3 was conducted. In the SDS-PAGE study, the relative molecular we
【机 构】
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College of Marine Life Sciences,Key Laboratory of Marine Biological Active Substances,College of Foo
论文部分内容阅读
Two-dimensional electrophoresis(2-DE) of protein extracted and purified from Alexandrium sp. LC3 was conducted. In the SDS-PAGE study, the relative molecular weights of the proteins were mainly in the range of 14 kDa-31 kDa and 43 kDa-66 kDa, and more proteins were detected between 14 kDa and 31 kDa. With the improved protein preparation, the two-dimensional electrophoresis patterns indicated that the relative molecular weights of the proteins were between 14 kDa and 100 kDa, and most of them ranged from 14 kDa to 31 kDa. This was consistent with the result of the SDS-PAGE analysis. The isoelectric points were found to lie between 3.0 and 8.0, and most of them were in the range of 3.0-6.0. Better separation effect was acquired with pre-prepared immobilized gradient (IPG) strip (pH 3-5.6), and about 320 protein spots could be visualized on the 2-DE map by staining. Within pH 3-10 and pH 3-5.6 strips, the protein samples of Alexandriun sp. LC3 could be separated well.
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