The catalytic site of chymotrypsin contains an interior aspartic acid hydrogen-bonded to a histidine which in its turn is hydrogen-bonded to a serine. Polarization of the system due to the buried ...

Amino acids are characterized by their central carbon atom, known as the α-carbon, which is bonded to an amino group (-NH2), a carboxyl group (-COOH), a hydrogen atom, and a variable side chain ...

Working with aspartic acid and asparagine, however, we have for some time observed that yeast growth has been stimulated under some conditions to a remarkable extent if either aspartic acid or ...