Point mutation in cistron B; pseudoallele of T4rIIA. Reversion rate to wild type approximately 106.
The liquid coliphage suspension is routinely tested for quality, purity, and titer. It contains DNA or RNA supplied as a filtered tryptic soy broth suspension of relative infective titer (108 plaque-forming units per mL). It comes with culture information. The liquid suspension is in tryptic soy broth. It is supplied in a vial and the proven titer is noted on the label. Quantity: 3 mL. Keep refrigerated.