28 - http/www4.ncsu.edu/~knopp/BCH451/e09b4.htm BCH 451...

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BCH 451 Summer 2009 Exam #4 NAME 1. Draw the predominate structures of the following molecules at the pH indicated. Be sure to include all carbon and hydrogen atoms! a. (1) IP 3 @ pH = 7 2. (0.5 each) For the following structure which is probably not stable, circle and name each and every hydrolyzable bond or linkage. Label each one with either “L” for a low energy bond, “M” for a bond with energy similar to ATP, or “H” for a bond with has energy much greater than ATP. 3. (4) For step 6 of glycolysis, name the enzyme, give the name of the class of the enzyme, draw the structures of the non-cofactor substrate(s) and product(s) connected by the reaction arrows, which show the reversibility or irreversibility, show the co-substrates coming in and out of the reaction as appropriate using the usual abbreviations, and list all other cofactors under the reaction arrow(s): Enzyme name: Enzyme class: Reaction: 4. (0.4) What are the critical amino acid residues in the active site for the enzyme in the previous question?
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