PPT-Acid-Base Properties of Amino Acids

What are amino acids Amino acids are the building blocks of proteins In the body they exist as zwitterions Zwitterions can behave as both an acid or a base Today we will Study the acidbase properties of amino acids . (Foundation Block). Dr. Ahmed Mujamammi. Dr. . Sumbul. . Fatma. Learning outcomes. What are the amino acids?. General structure.. Classification of amino acids.. Optical properties.. Amino acid configuration.. CHAPTER 3, Part 1 . Amino Acids and Peptides . To know the structure and naming of all 20 protein amino acids. To know the structure and properties of peptides and the particularly the structure of the peptide bond.. Stryer. Short Course. Chapter . 3. Amino Acid Structure. Alpha carbon. Sidechain. Proteins. peptides. Stereochemisty. L-amino acids. Glycine. R/S . vs. D/L. L-isoleucine. racemization. Ionization of Amino Acids. Debalina. . Mukhopadhyay. . . Containing carbon, hydrogen, nitrogen, oxygen. . Building blocks of protein. . Contain Amino group (NH2+) , carboxyl . group . (COO-) , Alkyl group (R ) / H . . alpha carbon contains the functional groups.. When an amino acid with positive and negative charges is overall neutral in charge, it is said to be at its . isoelectric point (. pI. ). .. . Ball-and-stick model of glycine at its . pI. of 6.0.. Plants and bacteria produce all of their amino acids using NH. 4. +. and NO. 3. –. .. Humans can synthesize 9 of the 20 amino acids found in their proteins.. Nonessential amino acids are synthesized in the body, while essential amino acids must be obtained from diet.. amine group. Draw. a carboxylic acid group. Join. them together to form a molecule with an amine and . a carboxylic acid . group. Amino Acids. Building blocks of proteins. Two functional groups: a carboxylic acid and a primary amine. ). Dr. . Sumbul. . Fatma. Learning outcomes. What are the amino acids?. General structure.. Classification of amino acids.. Optical properties.. Amino acid configuration.. Non-standard amino acids.. Nursing. First semester, 2021. General structure. Proteins are polymers of . α-amino acids (or amino acids).. An amino acid consists of . a central carbon atom, called the . . carbon, linked to four groups. Amino acids are weak . polyprotic. acids . . Neutral amino acids are (. gly. , ala, threonine ) are treated as diprotic acids .. acidic amino acids (. glu. , asp,) are treated as . triprotic. acids .. A. PHYSICAL PROPERTIES. Optical properties: . All amino acids except glycine possess optical isomers due to the presence of asymmentric carbon atom. Some amino acids have a second assymmentric carbon e.g. isoleucine, threonine.. Presented . by. Ms. . P. . . H. . Giri. Department of Microbiology. Deogiri . College, Aurangabad. B.Sc. F. Y.. Semester II. Paper No. V. Basic Biochemistry. Unit 3 Proteins. Ms. . Priyanka. H. . Giri. CLASSIFICATION AND PROPERTIES  Amino acids are organic compounds containing amine [ - NH 2 ] carboxyl [ - COOH] side chain [R group]  The major key elements if amino acids are carbon, hydrogen The general ways of amino acids degradation:. Transamination. Deamination. Decarboxylation. The major site of amino acid . degradation. . - the . liver. . . BIOSYNTHESIS . OF UREA. Urea biosynthesis occurs in four stages: .