Glutamine
Glutamine is the most abundant naturally occurring, nonessential amino acid in the human body, and one of the few amino acids that can directly cross the blood–brain barrier. Humans obtain glutamine through catabolism of proteins in foods they eat. In states where tissue is being built or repaired, like growth of babies, or healing from wounds or severe illness, glutamine becomes conditionally essential.
C16orf71
Alanine was the most abundant amino acid, contributing to 11.54% of the molecular weight of the protein. Serine was the second most abundant, contributing 10.19% to the overall molecular weight. The average Alanine frequency in vertebrate proteins is approximately 7.4% and the average Serine frequency is approximately 8.1%.