tokens: Productive growth of phage P22 in wild-type Salmonella typhimurium correlates with the presence of Abc2 , but is independent of the absolute level of ATP dependent nuclease activity , suggesting a qualitative change in the nature of Abc2 modified RecBCD nuclease activity relative to the native enzyme .
folded_tokens: productive growth of phage p22 in wild-type salmonella typhimurium correlate with the presence of abc2 , but be independent of the absolute level of atp dependent nuclease activity , suggest a qualitative change in the nature of abc2 modify recbcd nuclease activity relative to the native enzyme .