The 1665â66 epidemic was on a far smaller scale than the earlier Black Death pandemic; it was remembered afterwards as the great plague mainly because it was the last widespread outbreak of bubonic plague in England during the 400-year timespan of the Second Pandemic.
Proteins can also be very important in communication in the body â insulin, for example, is a protein. In fact, if you take away the water, 75% of our bodies are protein. All of these proteins require the right amino acids found in our bodies and our diets to be made. Can't make amino acids.
In order to attach a particular amino acid to the tRNA molecule that will transport it, an enzyme, an aminoacyl-tRNA synthetase, is required, along with ATP. Initially, the enzyme has an active site for ATP and another for the amino acid, but it is not able to attach the tRNA.