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A rare exception to the dominance of α-amino acids in biology is the β-amino acid beta alanine (3-aminopropanoic acid), which is used in plants and microorganisms in the synthesis of pantothenic acid (vitamin B 5), a component of coenzyme A. [77]
Print/export Download as PDF ... This is a list of articles that describe particular biomolecules or types of biomolecules. A. For ... Amino acid; Amylase (also see ...
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...
Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide. Amino acids are listed by type: Proteinogenic amino acid; Non ...
The N-terminal amino group of a polypeptide can be modified covalently, e.g., Fig. 1 N-terminal acetylation. acetylation (=) The positive charge on the N-terminal amino group may be eliminated by changing it to an acetyl group (N-terminal blocking). formylation (=)
Alpha amino acids (α-AAs) are the fundamental building blocks of life, and are the amino acids where the amino and carboxyl groups are attached to the same carbon atom. They are the main components of proteins, coenzymes, neurotransmitters, and hormones Here are some examples of alpha amino acids: Alanine An α-amino acid that is used in the ...
The amino group on one amino acid is rendered non-nucleophilic (P in eq) and the carboxylic acid group in the second amino acid is deactivated as its methyl ester. The two modified amino acids are then combined in the presence of a coupling agent, which facilitates formation of the amide bond:
Histidine (symbol His or H) [2] is an essential amino acid that is used in the biosynthesis of proteins.It contains an α-amino group (which is in the protonated –NH 3 + form under biological conditions), a carboxylic acid group (which is in the deprotonated –COO − form under biological conditions), and an imidazole side chain (which is partially protonated), classifying it as a ...