NUTR.2060 Lecture Notes - Lecture 7: Transferrin, Anaphylaxis, Malnutrition

• School: UMass Lowell
• Department: Clinical Labratory & Nutritional Sciences
• Course: NUTR.2060
• Professor: Thomas Wilson

Document Summary

Structure of proteins: contain hydrogen, oxygen, carbon, and most importantly; nitrogen and sulfur atoms, comprised of amino acids bonded together (peptide bond) in a single chain or multiple chains interconnected, amino acid structure: Side chain (r: different for each amino acid (20) Amino acids: nonessential amino acids (11) Body can synthesized from glucose and other amino acids: essential amino acids (9) Must be consumed via food protein or protein/amino acid supplements: conditionally essential amino acids. Essential only during childhood (arginine), certain disease states (pku; tyrosine), or trauma (glutamine) Synthesis of nonessential aas: transamination rx. Transfer of nitrogen (amino) group from one amino acid to a keto acid (which is from glucose) to form a new amino acid and a new keto acid. Requires vitamin b6: ammonium ion addition rx. Addition of a free nitrogen (amino) group to a amino acid or keto acid (which is from glucose) to form a new amino acid.