Intermediates in Amino Acid Biosynthesis

MINIMAL NUTRITIONAL REQUIREMENTS OF THE GERMAN ROACH, BLATTELLA GERMANICA L.*

“…These mixtures give relatively poor growth, not comparable to that of the proteins in succeeding columns. values capable of producing the population growth of the column heading; for example, a t a population density of 1.05 m.c./ml., the phenylalanine level provided by egg protein (30) is lower than that provided by peanut protein (32) or by casein (60). These levels (32 and 60) are therefore equal to or greater than the minimum level required by Tetrah y m n u to attain this rate of population growth.…”

The tyrosine regulated DAHP synthase and the biosynthetic pathway of aromatic amino acids in Saccharomyces cerevisiae

“…To synthesize one mole phenylalanine, tyrosine and tryptophan the cell has to invest 65, 62 and 78 mole ATP, respectively (Atkinson, 1977). This is probably the reason why animals lack this biosynthetic pathway of the three aromatic amino acids and are dependent on the uptake of these compounds with their diet (Davis, 1955;Sprinson, 1961;Gibson and Pittard, 1968).…”

DAHP Synthasen aus Pilzen

“…Shikimic acid was first described as a natural product from the plant Illicium religiosum by Eykmann in 1885, and it was from the Japanese name of this plant, shikimi-no-ki, that the name shikimic acid was derived (Haslam 1974). In the early 1950s, however, it was revealed that shikimic acid was an obligatory intermediate in the pathway from carbohydrate to the aromatic amino acids (Davis 1955, Sprinson 1961).…”