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文献和实验Competent cells, calcium chloride method, E. coli, description
, CaCl2 method, E. coli, long protocol Keywords: competent cells; E. coli; calcium chloride; Zappe CaCl2 competent cells Description Short protocol Related Contents Contributor: : Zappe, H
Recipe for yeast tryptone medium
Calcium chloride (1M), CaCl2 Component stock conc final conc. / 100 ml /1l CaCl2.2H20 - 1M 14.7g water - - to 100ml autoclave Recipe for chloroform:isoamyl alcohol mixture Keywords: chloroform:isoamyl alcohol mix; Babb
-buffered saline Trypsin 250: Difco order code 0152-13 (available from Becton Dickinson). Calcium chloride 1M Sodium Hydroxide NB. Trypsin containing chymotrypsin should always be used. The enzyme activities can vary from a supplier
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