What chemical compounds constitute amino acids, particularly glycine? Unique attributes of this amino acid.
Alicja Kowalska
2026-03-17
3 min. read
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Amino acids, which are formed through a continuous sequence and are linked by peptide bonds, form proteins, constituting a group of chemical compounds essential to human life. Among the 20 standard amino acids is glycine, an amino acid with unique features. Glycine has the lowest molecular weight of 75.1, while the other amino acids (except for alanine) have a weight exceeding 105.1, reaching up to 204.2 (in the case of tryptophan). Another distinctive characteristic of glycine is the presence of a nonpolar side chain containing only hydrogen and the absence of D- and L-glycine.
Glycine
Glycine was first isolated as early as 1820 It was obtained by the acidic breakdown of gelatin proteins. It was then recognized as a sweet sweet substituent for glucose so it was named after the Greek word for the taste, glycys. Knowledge of its properties led to its designation as an amino acid which, although not necessary from a nutritional point of view, is necessary for the proper functioning of the body.
The properties of glycine
Glycine has many physiological functions in both humans and animals. It is one of the main components of collagen and elastin the most abundant proteins in the body. In addition, it is a precursor to various important low-molecular-weight metabolites, such as porphyrins, purines, glutathione, hem and creatine. This amino acid is also present in the human body as an inhibitory neurotransmitter in the central nervous system, and also as an anti-inflammatory agent It has anti- inflammatory, immunomodulatory and cytoprotective properties, while also playing a role in the metabolism of the amino acids it administers, i.e. in spite of all the changes in glycemicity, which have a huge effect on human health.