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・ Calcium borate
・ Calcium bromate
・ Calcium bromide
・ Calcium buffering
・ Calcium carbide
・ Calcium carbimide
・ Calcium carbonate
・ Calcium caseinate
・ Calcium channel
・ Calcium channel blocker
・ Calcium channel blocker toxicity
・ Calcium channel opener
・ Calcium chlorate
・ Calcium chloride
・ Calcium chloride (data page)
Calcium chloride transformation
・ Calcium chromate
・ Calcium citrate
・ Calcium citrate malate
・ Calcium concentration microdomains
・ Calcium copper titanate
・ Calcium cyanamide
・ Calcium cyanide
・ Calcium deficiency
・ Calcium deficiency (plant disorder)
・ Calcium diglutamate
・ Calcium dobesilate
・ Calcium encoding
・ Calcium erythorbate
・ Calcium fluoride


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Calcium chloride transformation : ウィキペディア英語版
Calcium chloride transformation
Calcium chloride (CaCl2) transformation is a laboratory technique in prokaryotic (bacterial) cell biology. It increases the ability of a prokaryotic cell to incorporate plasmid DNA allowing them to be genetically transformed. The addition of calcium chloride to a cell suspension promotes the binding of plasmid DNA to lipopolysaccharides (LPS). Positively charged calcium ions attract both the negatively charged DNA backbone and the negatively charged groups in the LPS inner core. The plasmid DNA can then pass into the cell upon heat shock, where chilled cells (+4 degrees Celsius) are heated to a higher temperature (+42 degrees Celsius) for a short time.
==References==


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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