SOB

Summary

SOB Medium. Used in growing bacteria for preparing chemically competent cells

Ingredients

• 0.5% (w/v) yeast extract
• 2% (w/v) tryptone
• 10 mM NaCl
• 2.5 mM KCl
• 10 mM MgCl₂
• 20 mM MgSO₄

Source

Adapted From:

F. Ausubel et al., Short Protocols in Molecular Biology (John Wiley & Sons, ed. 4, 1999) pg. A1-36