Suspensions in water of two species of Fusobacterium leaked several coenzymes when incubated at normal growth temperatures. Chromatography of filtrates from these suspensions revealed the presence of NAD, NADP, FMN, tetrahydrofolic acid and, in one of the two, pyridoxal phosphate. Analyses of some enzymic activities in whole organisms demonstrated deficiencies in coenzymes:glutamate dehydrogena...

The initial rates of induced synthesis of tryptophanase, beta-galactosidase, and d-serine deaminase were measured in relation to the chromosome replication cycle of Escherichia coli B/r. Exponentially growing cultures were exposed briefly to (14)C-thymidine or the appropriate inducers (or both), and the amount of label or enzyme (or both) in cells of different ages was found by measuring these ...

Pseudomonas acidovorans has been studied by laser pulse, flash photolysis. Previous studies demonstrated that saturation of the catalytic and allosteric sites of the enzyme by L-tryptophan resulted in a 28-fold increase in the equilibrium constant for carboxyenzyme complex formation (MAENO, H., AND FEIGELSON, P. (1968) J. Biol. Chem. 243, 301-305). The present studies have shown that the predom...

● Modifications on constraints Since TRPO is a constraint optimization problem, our first thought is replacing the KL constraint by some other constraints that also measure policy similarity. A natural thought would be using MSE loss on . We noticed later that this in fact corresponds to the standard policy gradient update. We have also tried to directly optimize the objective without any const...

Tryptophan pyrrolase, the enzyme that catalyzes the oxidation of tryptophan to formylkynurenine, has been localized in the 11,000 X g supernatant fraction of mammalian liver homogenates (l), which contains microsomes and cell sap. In the course of the present investigations (Z), it was observed that the isolated microsomal fraction of rat liver is devoid of this enzyme. However, addition of thi...

Indoleamine 2,3-dioxygenase (IDO)-initiated tryptophan degradation in the placenta has been implicated in the prevention of the allogeneic fetus rejection [Munn, Zhou, Attwood, Bondarev, Conway, Marshall, Brown, and Mellor (1998) Science 281, 1191-1193]. To determine how IDO is associated with the development of the fetus and placenta, the time course of IDO expression (tryptophan-degrading act...