Some microorganisms have evolved cellular machinery that carries out chemical transformations in a manner analogous to that of the pyruvate dehydrogenase complex (PDC). One example of these remarkable transformations is shown below. معلم H3C 1. TPP 2. lipoamide CH3 + 3. Coenzyme A H3C H H3C SCOA он Provide a complete curved-arrow mechanism for all three steps of this multistep enzymatic transformation. You may abbreviate the structure of Coenzyme A as "COA-SH" in your mechanism. You do not have to show a mechanism for the regeneration of the lipoamide cofactor.

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Some microorganisms have evolved cellular machinery that carries out chemical transformations
in a manner analogous to that of the pyruvate dehydrogenase complex (PDC). One example of these
remarkable transformations is shown below.
معلم
H3C
1. TPP
2. lipoamide
CH3
+
3. Coenzyme A H3C
H
H3C
SCOA
он
Provide a complete curved-arrow mechanism for all three steps of this multistep enzymatic transformation.
You may abbreviate the structure of Coenzyme A as "COA-SH" in your mechanism. You do not have to show
a mechanism for the regeneration of the lipoamide cofactor.
Transcribed Image Text:Some microorganisms have evolved cellular machinery that carries out chemical transformations in a manner analogous to that of the pyruvate dehydrogenase complex (PDC). One example of these remarkable transformations is shown below. معلم H3C 1. TPP 2. lipoamide CH3 + 3. Coenzyme A H3C H H3C SCOA он Provide a complete curved-arrow mechanism for all three steps of this multistep enzymatic transformation. You may abbreviate the structure of Coenzyme A as "COA-SH" in your mechanism. You do not have to show a mechanism for the regeneration of the lipoamide cofactor.
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