Amino Acid: Any of a class of 20 molecules that are combined to form proteins in living things. The sequence of amino acids in a protein and hence protein function are determined by the genetic code.

 

Related Words

Amino Acid: Amino acids are molecules that contain at least one amine group (-NH2) and at least one carboxylic acid group (-COOH). When these groups are both attached to the same carbon, the acid is an . . . View Full Definition

Domoic Acid: Domoic acid is a toxic amino acid produced by certain species of algae. Domoic acid binds to a receptor that helps nerve cells control the flow of ions across their cell membranes. The recep . . . View Full Definition

Amino Acids: Twenty- two basic building blocks of the body that make up proteins.

Aspartic Acid: (D,HOOCCH2CH(NH2)COOH) A nonessential amino acid* that is abundant in molasses. The carboxylic acid* group on the side chain is ionized under physiological conditions, making aspartic acid r . . . View Full Definition

Gamma Amino Butyric Acid (GABA): Amino acid classified as an important inhibitory neurotransmitter, stimulating relaxation and sleep, ensures balance between excitation and inhibition, stimulates the Human Growth Hormone, a . . . View Full Definition

Amino Acid Sequence: Also known as the primary structure of a protein/polypeptide; the sequence of amino acids in a protein/polypeptide controlled by the sequence of DNA bases.

Alpha Lipoic Acid (ALA): Antioxidant increasing the production of glutathione and boosting toxic substances dissolving in the liver, used in preventing age-related diseases, found in meats and vegetables such as spinach.

Alpha Hydroxy Acids (AHAs): Water soluble compounds used in chemical peels and skin care products like moisturizers, cleansers, eye creams, sunscreen and foundations.

Acidulant: A substance added to food or beverages to lower pH and to impart a tart, acid taste. Phosphoric acid is an acidulant added to cola drinks.

Acidic Solution: A solution in which the hydrogen ion activity is higher than that of the hydroxide ion, when the solvent is water.