Note: very small pellets, not too much green, except with IPTG. Dissapointing. Get a better pellet with 6 mL of culture + 4 minute spin (max speed = 500 with swinging bucket rotor). But still no obvious induction with lactose.
minimal medium + Kanamycin (50 µg/mL)
Aliquots in freezer are labeled in 1, 3, 6, 10 mg/mL
Adding Kanamycin to __mL medium
Kan mg/mL | 10 | 25 | 50 | 100 | 250 | 500 | 1000 | mL medium |
---|---|---|---|---|---|---|---|---|
1 | 0.5 | 1.25 | 2.5 | 5 | 12.5 | 25 | 50 | uL Kan |
3 | 0.17 | 0.42 | 0.83 | 1.67 | 4.17 | 8.33 | 16.67 | uL |
6 | 0.08 | 0.2 1 | 0.42 | 0.83 | 2.08 | 4.17 | 8.33 | uL |
10 | 0.05 | 0.125 | 0.25 | 0.5 | 1.25 | 2.5 | 5 | uL |
Sugar solutions
Ingredient | vendor | cat # | MW | mM | 10 | 25 | 30 | 50 | 100 | mL |
---|---|---|---|---|---|---|---|---|---|---|
glucose | 180.15 | 500 | 0.9 | 2.25 | 2.7 | 4.5 | 9 | g | ||
galactose | 180.15 | 500 | 0.9 | 2.25 | 2.7 | 4.5 | 9 | g | ||
maltose | 342.3 | 500 | 1.8 | 4.5 | 5.4 | 9 | 18 | g | ||
lactose | 342.3 | 500 | 1.8 | 4.5 | 5.4 | 9 | 19 | g | ||
IPTG (100mM) | 0.4 | 0.004 | 0.01 | 0.012 | 0.2 | 0.4 | mL |
Each group needs
medium | mL per group | ~mL total |
---|---|---|
minimal | 3 | 100 |
lactose | 1 | 50 |
IPTG | 0.75 | 25 |
gal | 0.5 | 15 |
glu | 1 | 30 |
malt | 0.25 | 10 |
For Lab 3.2, each group needs enough as if to fill two rows of a plate with 100µL = 2.4 mL
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