PDF-WATER HATING SIDE CHAINS OF AMINO ACIDS

CHCH3CH3 Valine CH2CHCH3CH3 Leucine CHCH3CH2CH3 Isoleucine H Glycine Proline CHCH3CH3 Valine CH2CHCH3CH3 Leucine CHCH3CH2CH3 Isoleucine H Proline WATER LOVING. C483 Spring 2013. Questions. 1. . Amino acids with non-. ionizable. side chains are zwitterions when they are ________.. A. ) in any solution . . D) in alkaline solutions only . B. ) at physiological pH, pH = 7.4 . (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.. Hydrogen bonds in the tertiary . protein structure. Many amino acids contain groups in the side chains that have a hydrogen atom attached to either an oxygen or nitrogen atom. Hydrogen bonding can occur between such groups.. THE EXCRETION OF AMMONIUM IONS. A part of NH4+ that is formed in the degradation of amino acids is used for the biosynthesis of nitrogen compounds. In most of the land living vertebrates the excess NH4+ is converted in urea and in that form is excreted. In birds and reptiles it is converted into uric acid and in aquatic animals it is directly excreted as urea.. Unit objectives:. Identify amino acid classifications based on nutritional use and chemical properties of side chains. Describe the primary, secondary, tertiary and quaternary structures of proteins. Dr.. . Zaffar. . Mehmood. Definitions:. Food: . means . a raw, cooked, or processed edible substance, ice, beverage, or ingredient used or intended for use or for sale in whole or in part for human consumption, or chewing . 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. backbone.  . atoms . (see aminoAcids1).  but a unique set of . side chain . atoms. It's the side chains that make the 20 amino acids different from each other. . 1. Use the three identical backbone pieces and three unique side chain pieces below to construct three amino acids in the space to the right.. 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 . Munther. . . Protein Structure . & Function. . Amino Acids . Aims of The Lecture. . . . The students should be learning about Amino acids:. The structures and types.. The importance and functional role. . Atul. Kumar Singh. Assistant Professor. Department of Chemistry . M. L. . Arya. College, . Kasba. Purnia. -854330. India. Amino Acids. Amino . acid are organic compounds . that contain amino . grouph. imino. acid.” . Figure 5: Comparison of the secondary amino group found in proline with the primary amino group found in other amino acids such as alanine.. 2. Proline: . Proline differs from other amino acids in that its side chain and amino N form a rigid, five -member red ring structure (Figure 5). Proline, then, has a secondary (rather than a primary) amino group. It is frequently referred to as an “. BSc 3. rd. year . AMINO ACIDS. C. lassification of amino acids . Classification according to nature of side chain. PREPARATION OF AMINO ACIDS. 1. Gabriel Phthalimide synthesis. 2. Strecker’s synthesis. By . Professor . Dr. Jamal Ahmed . Abdel . -Barry. On the other hand proteins can be classified based on [structure] into 4 types:.  . 1. Primary Structure: . . Prefers the covalent bond [peptide bond] and S – S bond (Cysteine + Cysteine) and the sequence of Amino Acids. .