They found the formation of a far larger variety of life's building blocks, including two kinds of nucleobases and nine kinds of proteinogenic amino acids. (sciencedaily.com)
One group of amino acids that are very important to humans are classified as proteinogenic amino acids. (aminoacidstudies.org)
As a species, we need to consume 21 proteinogenic amino acids in order to synthesize various specific proteins and hormones which are essential to our bodies» proper functioning. (fitnessandpower.com)