glycine (glī`sēn), organic compound, one of the 20 amino acids amino acid (əmē`nō)
..... Click the link for more information. commonly found in animal proteins. Glycine is the only one of these amino acids that is not optically active, i.e., it does not have d- and l-stereoisomers. It is structurally the simplest of the α-amino acids, having merely a hydrogen atom for a side chain, and is thus very unreactive when incorporated into proteins. Nevertheless, in the free state glycine participates in several important reactions, including the biosynthesis of heme, an important constituent of hemoglobin hemoglobin (hē`məglō'bĭn)
..... Click the link for more information. , and the biosyntheses of serine serine (sĕr`ēn), organic compound, one of the 20 amino acids commonly found in animal proteins.
..... Click the link for more information. (another amino acid), purines purine, type of organic base found in the nucleotides and nucleic acids of plant and animal tissue. The German chemist Emil Fischer did much of the basic work on purines and introduced the term into the chemical literature in the early 20th cent.
..... Click the link for more information. (constituents of genetic material), and glutathione (a coenzyme biotin, is a member of the B complex; it was first isolated in 1935 from dried egg yolk, and its structure was established in 1942. Biotin is usually found attached to a lysine residue in certain enzymes, where it participates in reactions involving the transfer of carboxyl
..... Click the link for more information. ). Defects of glycine metabolism are very rare. The amino acid is not essential to the diet since it can be made from other substances in the body. Glycine was the first amino acid to be isolated from a protein, in this case gelatin.

glycine

One of the nonessential amino acids. The simplest amino acid (NH₂CH₂COOH), it occurs in many proteins; especially rich sources are silk fibroin and gelatin. It has a sweet taste and is used to reduce the bitter flavour of saccharin. Other uses are in organic synthesis and biochemical research, as a nutrient and feed additive, and to retard rancidity in animal and vegetable fats.

glycine (redirected from glycine tolerance test)

glycine

glycine
(redirected from glycine tolerance test)