Chemistry of Natural Products: Amino Acids, Peptides, Proteins, and Enzymes
This volume deals with amino acids, peptides, proteins and enzymes.
The text is divided into four chapters: a chapter each dedicated
to amino acids, peptides, proteins and enzymes respectively. The first chapter on 'Amino Acids' covers their nomenclature, classification, stereo-chemistry, physical and chemical properties, synthesis and industrial applications. The important reactions have been explained with the help of the mechanisms involved. The second chapter on 'Peptides' explains the formation and structure of the peptide bond and its significance. The chapter gives a detailed account of the solution phase and solid phase synthesis of peptides as well as discussing the structure and function of some biologically important peptides. The next chapter on 'Proteins' discusses different types of classification and explains their properties. The structural organisation of proteins has been covered in detail including the primary structure determination. The fourth and the last chapter on 'Enzymes' is a logical extension of the coverage in the first three chapters. It covers the classification, nomenclature and mode of action of enzymes, and a detailed account of the structure and function of different coenzymes.
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CLASSIFICATION OF AMINO ACIDS
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a-amino acceptor active acyl alanine alcohol alkyl amide amine amino acid residues amino acid sequence amino group anhydride aqueous arginine aspartic acid atom called carbon carboxyl group cell chemical chiral chloride chromatography chymotrypsin cleavage cleaves coded amino acids coenzyme cofactors complex COOH cysteine dehydrogenase deprotection derivatised derivative determination dipeptide disulphide linkages enzymatic enzyme enzyme catalysed ester example formation fragments free amino functional groups give glutamic acid glutathione glycine helical helix histidine hydrogen bonding hydrolysis insulin involved ionisable isoelectric isoleucine leucine lysine metal ions methionine method molecular N-terminal NAD+ ninhydrin nucleophile number of amino obtained oxidase oxidation peptide bond peptide synthesis phase peptide synthesis phenylalanine phosphate polypeptide polypeptide chain presence proline protecting group protein amino acids protein molecule proton reaction reacts reagent resin salt secondary structure separation serine side chain solubility solution solvent specific stabilised substrate tripeptide tryptophan tyrosine valine