No abstract available
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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DNA, Superhelical / chemistry
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DNA, Superhelical / isolation & purification*
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Electrophoresis, Agar Gel / methods
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Histidine / chemistry*
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Plasmids / chemistry
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Plasmids / isolation & purification*
Substances
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DNA, Superhelical
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Histidine