Glutamic acid, aspartic acid and their amides occupy an important place in the metabolism of nitrogenous compounds. We know that glutamic acid was the main entry point of ammonia into biological compounds and we will see that its metabolism is linked to that of several other amino acids; as for its amide, glutamine, it plays an important role in the [...]
It is not surprising that the metabolism of these two aromatic amino acids is closely linked because they differ only by the presence of a phenolic OH in the tyrosine molecule. We will not study here their biosynthesis which — in organisms where it takes place, especially bacteria — starts from 2 compounds of the carbohydrate metabolism (erythrose-4-℗ and phosphocnolpyruvate) [...]
In this article we will discuss about the synthesis and absorption of amino acids. Synthesis of Amino Acids: E.coli and many other micro-organisms can be grown in an inorganic medium with glucose added as the only source of carbon, which definitely shows that all amino acids can be synthesized by these cells from glucose. It may be considered that plants [...]