PPT-Amino acids have important roles in living organisms

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 1letter abbreviations. Codons. Prefixes, Suffixes and Vocabulary. Poly. = many. Peptide bond . =bond between two amino acids.. Anti. = against, opposite. Dehydration. = loss of water. Polypeptide. = long assembled string of amino acids.. 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. B.2. Properties of 2-amino acids . (B.2.2). Zwitterion. (dipolar) . amino acids contain both acidic and basic groups in the same molecule . therefore, are . amphoteric. in nature (capable of behaving as acids or bases). 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.. (Foundation Block). Learning outcomes. What are the amino acids?. General structure.. Classification of amino acids.. Optical properties.. Amino acid configuration.. Non-standard amino acids.. Derivatives of amino acids.. 18. /2014. Biochemistry I. Dr. Loren Williams. Proteinogenic Amino Acids. An amino acid contains . an amine group . a carboxylic acid group, . a side-chain (or R-group,. all attached to the same chiral carbon atom (the Cα). DR AMINA . BIOCHEMISTRY. All tissues have some capability for synthesis of:. The non-essential amino acids,. Amino acid remodeling, . and Conversion of non-amino acid carbon skeletons into amino acids and other derivatives that contain nitrogen. . ). 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.. Amino Acids. Amino acid play A central role as building block of proteins.. Amino acids also converted to specialized products.. More than 300 different amino acids have been described in nature, only 20 are commonly found in mammalian proteins... . 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 . . . 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 .. 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. 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..