All of the following is correct about folate and vitamin B12 involvement in resynthesis of methionine from homocysteine except:Cobalamin acts as a methyl donor by giving the methyl group to 5-methyl THFMethylcobalamin give a methyl group to homocysteine to form methionine and reform cobalamin5, 10-methylene THF is converted to 5-methyl THF by methylene THF reductaseThe involvement of folate and vitamin B12occurs in the cytosol.

Vit B12 and folate have a very important role in many different physiological functions. Vit B12 and…

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9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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All of the following is correct about folate and vitamin B₁₂ involvement in resynthesis of methionine from homocysteine except:

Cobalamin acts as a methyl donor by giving the methyl group to 5-methyl THF
Methylcobalamin give a methyl group to homocysteine to form methionine and reform cobalamin
5, 10-methylene THF is converted to 5-methyl THF by methylene THF reductase
The involvement of folate and vitamin B₁₂occurs in the cytosol.

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