29.1. What Is the General Outline of Biosynthetic Pathways?, 772
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Kinetic Analysis of Amylase Using Quantitative Benedict's and Iodine Starch ReagentsBeverly Cochran, Deborah Lunday, and Frank Miskevich This laboratory emphasizes that enzymes mediate the conversion of a substrate into a product and that either the concentration of product or reactant may be used to follow the course of a reaction. It does so by using an inexpensive scanner and open-source image analysis software to quantify amylase activity through the breakdown of starch and the appearance of glucose. Cochran, Beverly; Lunday, Deborah; Miskevich, Frank. J. Chem. Educ.2008, 85, 401.
Biosynthesis |
Carbohydrates |
Catalysis |
Enzymes |
Food Science |
Nutrition |
Quantitative Analysis |
UV-Vis Spectroscopy
Isolation of Betulin and Rearrangement to AllobetulinBrian Green, Michael D. Bentley, Bong Y. Chung, Nicholas G. Lynch, and Bruce L. Jensen Betulin is obtained by extraction from birch bark and converted to allobetulin. Both compounds display 1H NMR spectra that include axialequatorial coupling characteristic of a C3-alcohol, conformational analysis by the use of dihedral angles and the Karplus equation, coupling patterns caused by diastereotopic protons and long-range interactions, and chemical shift values that are influenced by electronegativity and stereochemistry. Green, Brian; Bentley, Michael D.; Chung, Bong Y.; Lynch, Nicholas G.; Jensen, Bruce L. J. Chem. Educ.2007, 84, 1985.
Biosynthesis |
IR Spectroscopy |
Microscale Lab |
NMR Spectroscopy |
Synthesis |
Natural Products
Nature's Way To Make the LantibioticsHeather A. Relyea and Wilfred A. van der Donk This article focuses on one class of antimicrobial compounds, the lantibiotics, and discusses their biosynthetic pathways as well as their molecular mode of action. In the course of the review, the meaning of the terms regio-, chemo-, and stereoselectivity are discussed. Relyea, Heather A.; van der Donk, Wilfred A. J. Chem. Educ.2006, 83, 1769.
The Building Blocks of BiochemistryEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Biosynthesis
Transcription and TranslationEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.