PPT-Amino Acids, Peptides and

Proteins Part I Dr Ravish Chauhan Associate Professor IGN College Ladwa Amino Acids These are the compounds which contain both amino and carboxylic group. 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 . 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.. Subunits (building blocks) of peptides and proteins. Neurotransmitters. Metabolic intermediates. glutamate. γ. -. aminobutyric. acid. (GABA). Proteins are synthesized from 20 ‘standard’ . α. -amino acids. Their names have 3- and 1-letter abbreviations.. 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.. 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.. 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. 1. . Overview. The catabolism of the amino acids involves:. Removal of α-amino groups. . Breakdown of the resulting carbon skeletons.. The resulting compounds will be used to form seven intermediate products: . . are organic molecules that are the building block of . . proteins. .. -There is 20 . α. -amino acids commonly found in . proteins. . ( . they . have a carboxyl group and an amino group . . . 6. 6.1 Differentiate . between essential amino acids and nonessential amino acids.. 6.2 List . the functions of protein in the body.. 6.3 List . the steps for protein digestion and absorption in the body. . 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.. Protein. Builds and repairs body tissue. Provides some energy. There are 4 calories per gram of protein. Protein. Composed of chains of amino acids. Common Amino Acids. Alanine. Glycine. Isoleucine. Leucine. u. sing paper chromatography. Kate Andrews. Lorraine Bruce. Unit 1 DNA and the Genome. 3 Control of gene expression. Separation and identification of amino acids using paper chromatography.. Cells and Proteins.  . Constantinos. Avraamides . 1. , . Spyridoula. . Diavoli. . 1. , Ariana Robertson . 2. , Manos Vlasiou . 1. , Elena . Mourelatou. . 1. ,. Christos Petrou . 1. , Yiannis Sarigiannis *. 1. 1. Department of Life & Health Sciences, University of Nicosia, Nicosia, Cyprus. Assistant Professor. Department of Botany. BIOACTIVE PEPTIDES. CONTENT. INTRODUCTION. PROTEIN. PEPTIDES. BIOACTIVE PEPTIDES. PRODUCTION OF BIOACTIVE PEPTIDES. ENZYMZTIC DIGESTION. EFFECTS ON HEALTH AND RESOURCE.