Threonine and Methionine Catabolism to Succinyl CoA

Threonine and Methionine Catabolism to Succinyl CoA

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Interactive Video

Science, Chemistry

University

Hard

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The video explores the catabolism of methionine and threonine, detailing the enzymatic pathways involved. Methionine catabolism begins with methionine adenosyl transferase, leading to the production of homocysteine and further conversion to alpha-ketoglutarate. Threonine catabolism involves threonine dehydratase, producing alpha-keto butyrate. Both pathways converge at succinyl CoA, which plays a crucial role in the TCA cycle and gluconeogenesis. Methionine is glucogenic, while threonine is both ketogenic and glucogenic.

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4 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

How does threonine catabolism begin, and what enzyme is involved?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

What are the end products of threonine catabolism?

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

Discuss the relationship between succinyl CoA and gluconeogenesis.

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the difference between glucogenic and ketogenic amino acids as discussed in the video?

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