PPT-Amino Acids, Peptides, Proteins and Nucleic Acids

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 Streckers synthesis. 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.. polymers. four major classes of biologically important organic molecules: . carbohydrates. lipids. proteins . (and related compounds). nucleic acids . (and related compounds). Discuss hydrolysis and condensation, and the connection between them.. Proteins account for more than 50% of the dry mass of most cells. Protein functions include structural support, storage, transport, cellular communications, movement, and defense against foreign substances. Polypeptides . are chains of amino acids linked together by condensation reactions. the main, or only, component in proteins. Some proteins are composed of only one polypeptide chain, while others are made of 2 or more. 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. 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.  . Amino . Acids are the building units of proteins. There are about 300 amino acids occur in nature. Only 20 of them enter in proteins synthesis..  . Structure of amino acids:. Four different . groups . A. . Peptides. are compounds, formed of less . than . 50 . amino acids . linked together by peptide bonds.. 1.. . Dipeptide. (2 amino acids and one peptide bond).. 2.. . Tripeptide. (3 amino acids and two peptide bonds).. B2 - Compare the . structures. & . functions. of carbohydrates,. . lipids, proteins, & . nucleic acids . & . their organization into long complex molecules . Consist of:. . Carbon. , hydrogen, oxygen, .  . 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. Explain the formation . of a protein.. Classify proteins according to their chemical structure.. Describe the classification of protein.. Name a food source for the following proteins: albumin . caseinogen. Proteins. Part I. Dr. Ravish Chauhan. Associate Professor. IGN College, Ladwa. . . Amino Acids. . These are the compounds which contain both amino and carboxylic group. Unit 1 Advanced Higher. Miss Aitken. Pages 16-25. Textbook. Proteomics. Genome:. complete set of DNA. Comprises of coding and non-coding areas. 20-25000 genes in human genome. Proteome:. Entire set of proteins that can be expressed from a genome.