The Amino Acids and Proteins section contains posts/pages covering the basic biochemistry of amino acids, protein structure, hemoglobin and myoglobin, amino acid biosynthesis and catabolism, and the synthesis of specialized products of amino acid such as nitric oxide and various neurotransmitters.
Last Updated: December 4, 2024 Introduction to Amino Acid Metabolism All tissues have some capability for synthesis of the non-essential amino acids, amino acid remodeling, and conversion of non-amino acid carbon skeletons into amino acids and other derivatives...
Last Updated: October 21, 2024 Introduction to Glycoproteins Membrane associated carbohydrate is exclusively in the form of oligosaccharides covalently attached to proteins forming glycoproteins, and to a lesser extent covalently attached to lipid forming...
Last Updated: December 19, 2022 Primary Structure of Proteins The primary structure of peptides and proteins refers to the linear number and order of the amino acids present. The convention for the designation of the order of amino acids is that the N-terminal end...
Last Updated: September 14, 2023 Myoglobin Myoglobin and hemoglobin are hemeproteins whose physiological importance is principally related to their ability to bind molecular oxygen. Myoglobin is a monomeric heme protein found mainly in muscle tissue where it serves as...
Last Updated: September 19, 2024 Tyrosine-Derived Neurotransmitters / Hormones Much of the tyrosine that does not get incorporated into proteins is catabolized for energy production. Another significant fate of tyrosine is conversion to the catecholamines. The...
Last Updated: September 16, 2024 Chemical Nature of the Amino Acids All peptides and polypeptides are polymers of α-amino acids. There are 20 α-amino acids that are relevant to the make-up of mammalian proteins (see below). Several other amino acids are found in the...