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Biochemistry Endocrinology 8d92b714

Melatonin is derived from

A
Tyrosine
B
Tryptophan
C
Glutathione
D
None
High-Yield Explanation
Tryptophan is first hydroxylated by tryptophan Hydroxylase 5-hydroxytryptophan is decarboxylated to serotoninSerotonin is acetylated Fuher methylated with the help of S adenosylmethionine (SAM)Ref: DM Vasudevan, 7th edition, page no: 241, fig 18.10
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