نتایج جستجو برای: tryptophanase

تعداد نتایج: 360  

Journal: :Biotechnology and bioengineering 2015
Brian W Kwan Devon O Osbourne Ying Hu Michael J Benedik Thomas K Wood

Persisters are bacteria that are highly tolerant to antibiotics due to their dormant state and are of clinical significance owing to their role in infections. Given that the population of persisters increases in biofilms and that cyclic diguanylate (c-di-GMP) is an intracellular signal that increases biofilm formation, we sought to determine whether c-di-GMP has a role in bacterial persistence....

2002
John C. Vederas Erwin Schleicher Ming-Daw Tsai Heinz G. Floss

Several p replacement and cu,p elimination reactions catalyzed by tryptophanase from Escherichia coli are shown to proceed stereospecifically with retention of configuration. These conversions include synthesis of tryptophan from (2S,3R)and (2S,3S)-[3-3H]serine in the presence of indole, deamination of these serines in DzO to pyruvate and ammonia, and cleavage of (2S,3R)and (2S,3S)-[3-3H]trypto...

2015
Zohar Pasternak Tom Ben Sasson Yossi Cohen Elad Segev Edouard Jurkevitch Michael Platten

Predatory bacteria seek and consume other live bacteria. Although belonging to taxonomically diverse groups, relatively few bacterial predator species are known. Consequently, it is difficult to assess the impact of predation within the bacterial realm. As no genetic signatures distinguishing them from non-predatory bacteria are known, genomic resources cannot be exploited to uncover novel pred...

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