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From 2012.igem.org

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Lab protocols

On this page you can find a list of important standard protocols we used in our project.

Preparation of chemocompetent DH5-alpha cells

• liquid cultures, OD_600 of 0,6-0,8
• centrifugation at 4 °C, 4500 g, 10 min
• decantation
• resuspend with 40 ml inoune transformation buffer
• repeat centrifugation, decantation and resuspendation
• centrifuge and decantate again
• resuspend in 20 ml inoune transformation buffer
• add 1,5 ml DMSO
• shock freeze in liquid nitrogen