BIOCHEMISTRY - Textbook - Ostapchenko L. I. - 2012

Chapter 6. AMINO ACID METABOLISM AND FUNCTIONS. PROTEIN BIOSYNTHESIS

6.4. Catabolism of amino acids

Amino Acids resulting from Protein Digestion and delivered to tissue Cells undergo Catabolic and anabolic pathways, as well as specific reactions that synthesize biologically active compounds.

The Catabolism of Most amino acids begins with the Cleavage of the α-amino group. An amino acid loses its amino group through Two Types of reactions: Transamination and deamination.

Last update: 06/08/2026

Editorial and Educational Adaptation: This material has been compiled based on the primary/original source text. The project team performed an editorial review, corrected technical inaccuracies, structured sections, and adapted the content for an educational format.

What was processed:

elimination of formatting defects (OCR errors, structural breaks, corrupted characters);
editorial organization of content;
standardization of terminology in accordance with academic sources;
verification of factual statements against the original source text.

All mentions of the author, publication year, and origin of the primary text have been preserved in accordance with the source.