Explain cystathionine synthase and cystathionase levels

Reference no: EM13248811

you suspect that a 14 year old male patient has an inborn error of methionine metabolism. you order several tests and find that his homocysteine levels are elevated, but methionine levels are low. a liver biopsy demonstrates cystathionine synthase and cystathionase levels are normal. this patient may have a deficiency of

a. serine

b. threonine

c. vitamin B12

d. methylmalonyl CoA

e. succinyl CoA

Reference no: EM13248811

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