Recipe

Complete Synthetic Medium without Leucine and containing Adenine Sulfate (CS + A5-L)

Yeast nitrogen base without amino acids (Difco)   6.7 g/L
Adenine sulfate   5 mg/L
Dextrose   20 g/L
Agar (for solid medium)   20 g/L
Sorbitol    1 m
L-Tyrosine  50 mg/L
L-Arginine HCl  50 mg/L
L-Aspartic acid  80 mg/L
L-Histidine HCl  20 mg/L
L-Isoleucine  50 mg/L
L-Lysine HCl  50 mg/L
L-Methionine  20 mg/L
L-Phenylalanine  50 mg/L
L-Threonine 100 mg/L
L-Tryptophan  50 mg/L
Uracil  20 mg/L
L-Valine 140 mg/L
Adenine hemisulphate  0.1 mg/L
Dissolve the amino acid L-tyrosine first. (When it is added according to its alphabetical position it will not go into solution.) Autoclave. For solid medium, add 20 mL to each Petri plate. Store at 4°C (this is stable for at least 6 mo).
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