'Noncompetitive inhibition' diaporamas de présentation

Microbial Genetics

Microbial Genetics. and biotechnology. Define Terms. Genetics Genome / Genomics Chromosomes Gene Genotype Phenotype Recombination. Control of Gene Expression. DNA Structure. Double stranded Nucleotide Nitrogen Bases Sugar Phosphate Base Pairs Hydrogen Bonds A-T C-G Alpha helix

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Enzyme Inhibition and Mechanisms

Enzyme Inhibition and Mechanisms. Andy Howard Introductory Biochemistry, Fall 2010 Monday 20 September 2010. How do enzymes reduce activation energies?. We want to understand what is really happening chemically when an enzyme does its job.

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Metabolism, Photosynthesis, and Cellular Respiration

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Subject: Do you like to win? How about free stuff?

Subject: Do you like to win? How about free stuff? Well, you can do both if you submit the winning chemistry club T-shirt design. Designs may be submitted in the chemistry library in the box near the microwave - you can't miss the big black arrow showing you the way.

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Chapter 15

Chapter 15. Enzymes. Enzyme Catalysis. Enzyme : a biological catalyst with the exception of some Ribozymes that catalyze their own splicing, all enzymes are proteins enzymes can increase the rate of a reaction by a factor of up to 10 20 over an uncatalyzed reaction

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ENZYMES

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CHAPTER 15 ENZYMES

CHAPTER 15 ENZYMES. Enzymes provide an alternative pathway for reaction, one with a significantly lower activation energy and, therefore, a faster rate. Terms in Enzyme Chem. Apoenzyme : the protein part of an enzyme.

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Enzymes

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Energy and Metabolism

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ENZYMES

ENZYMES. Crystal structure of trypsin http://en.wikipedia.org/wiki/Trypsin. Function of enzymes. ? they are special proteins produced by living cells they are catalysts ? increase the rate of chemical reactions and decrease the activation energy of the reaction

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CHMI 2227E Biochemistry I

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Km Measure of binding affinity (roughly) The lower the Km, the tighter the binding Vmax

Km Measure of binding affinity (roughly) The lower the Km, the tighter the binding Vmax Maximum rate of enzyme Determined by turnover number (k cat ). How best to calculate them?. Double-reciprocal plot (Lineweaver-Burk). Problems 7a-d,8a,b. Regulation. Regulation.

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Enzymes

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RAS

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Chemical Reaction A chemical change occurs

+. +. A. B. AB. yields. Chemical Reaction A chemical change occurs. +. -or-. +. A. B. AB. yields. Parts of a Chemical Reaction. Reactant Product Lactose Glucose + Galactose Lactose is broken down because a chemical reaction occurs. Enzyme Basics. What is an enzyme?

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Enzymes

k 1. k 2. S. E. k -1. - K m , V max. 0.5 V max. K m. Enzymes. Eric Niederhoffer SIU-SOM. S. P. E. EI. S. E. K ic. S + E. ES. E + P. +. I. K m app / V max. K m app. -1/ K m app. Competitive Inhibition. CI. Competitive. ESI. K iu. S + E. ES. E + P. +. I.

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