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When animals synthesize Met, they typically use Asp as the starting point. Since they cannot incorporate...

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Biology

When animals synthesize Met, they typically use Asp as thestarting point. Since they cannot incorporate inorganic sulfur,they use Cys as the source of sulfur, going by way ofcystathionine. Finally, they use Serine as the source of the methylgroup via folate metabolism.

Calculate the the number of ATP consumed (or produced) to drivethis overall conversion:   

Asp + Cys + Ser →  Met + Gly + pyruvate +NH3

Assume that synthesis of cystathionine from homoserine and Cysrequires prior activation of the homoserine (e.g., bysuccinylation),

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4.3 Ratings (540 Votes)
The biosynthesis ofmethionine is started from the aspartate aminoacidsAspartateis synthesized by oxaloacetate an important    See Answer
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