All of the following amino acids are one-carbon donors, EXCEPT
Correct Answer: Threonine
Description: Sources of one-carbon groups: Serine to glycine (Serine hydroxymethyl transferase reaction) is the primary contributor for methylene THFA. Glycine cleavage system produces methylene groups is the glycine cleavage system Histidine contributes to N5-formimino THFA through FIGLU Tryptophan donates formyl-THFA Choline and betaine are donors of hydroxy methyl groups
Category:
Biochemistry
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