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The first step in the catabolism of amino acids is the removal of the nitrogen as ammonia, forming a keto acid that can enter one of the carbon catabolic pathways. The alpha-keto acid pyruvate can be formed from the amino acids alanine, cysteine, glycine, serine and threonine. Consider the route for alanine catabolism. Anine reacts with to produce pyruvate and. This reaction is catalyzed by aspartate aminotransferase. alanine aminotransferase. alanine dehydrogenase. The substrate for the first step can be regenerated by reacting with NAD^+ This reaction is catalyzed by glutamate dehydrogenase. alpha-ketoglutarate dehydrogenase. alanine dehydrogenase. aspartate dehydrogenase. The coenzyme/prosthetic group required in the first reaction is thiamine pyrophosphate. biotin. pyridoxal phosphate. lipoic acid.

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The coenzyme required is pyridoxal phosphate. It is a vitamins B6 cofactor required for transamination reaction.
tanisharawat014

Coenzymes are organic compounds that many enzymes require for catalytic activity. They are frequently vitamins or vitamin derivatives.

The coenzyme prosthetic group required in the first reaction is thiamine pyrophosphate.

What is thiamine pyrophosphate?

Thiamine pyrophosphate is a vitamin B1 derivative produced by the enzyme thiamine diphosphokinase.

Thiamine pyrophosphate is a cofactor found in all living systems that catalyzes a variety of biochemical reactions.

Thus, we can conclude that option A is correct.

You can learn more about coenzyme here:

https://brainly.com/question/18499466

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