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Make a C16:0 FA with malonyl CoA labeled as the methylene group. Draw the strucute of the FA and show all labels.
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- Identify the label in the correct position in the following: C-1 of acetyl CoA to malate (one cycle) 3-14C OAA + unlabeled acetyl-CoA to succinate.Show the structure of each intermediate in the conversion of b-hydroxybutyryl-ACP to butyryl-ACP by the fatty acid synthetase complex. Show where cofactors participate. In your first intermediate, circle the carbon atoms derived from malonyl-CoA.Thiolase is homologous in structure to the condensing enzyme. On the basis of this observation, propose a mechanism for the cleavage of 3-ketoacyl CoA by CoA.
- Draw the structure of the acyl CoA formed from palmitic acid, C 15H 31CO 2H. Use this acyl CoA to write out the four steps of β-oxidation.In order to provide the acetyl-CoA molecules to produce 3 equivalents of palmitic acid, how many glucose molecules would be required?Give the name of two Molecules of Farnesyl Pyrophosphate:
- Draw the C-2 epimer of RiboseWhat are the possivble oxidation product of catalase using H2O2 as the substrate? Explain in 1-3 sentencesFatty acids are converted to their coenzyme A esters in a reversible reaction catalyzed by acyl-CoA synthetase: R-COO +ATP +COA R-C-COA +AMP + PPi a) The reaction involves two steps the first of which forms an enzyme-bound intermediate identified as the mixed anhydride of the fatty acid and AMP: R-C-O-P-O-nibose-adenine Write two chemical equations coresponding to the two steps of the reaction catalyzed by the synthetase. b) The acyl-CoA synthetase reaction as written above is readily reversible. How might the reaction be made to favor formation of fatty acyl-CoA? Write within the box. Anything outside the box will not be graded. From the
- A biological Claisen reaction occurs in the conversion of two acetyl CoA molecules to one acetoacetyl CoA. Analyze each step of the incomplete mechanism and add the missing curved arrows. The base is abbreviated as B: in the mechanism.Peroxisomes have an alternative pathway for oxidizing polyunsaturated fatty acids. They contain a hydratase that converts D-3-hydroxyacyl CoA into trans Δ²- enoyl CoA. How can this enzyme be used to oxidize CoAs containing a cis double bond at an evennumbered carbon atom (e.g., the cis-Δ¹² double bond of linoleate)?What is a potential fate of propionyl CoA?