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Tryptamine - otherwise known as indolamine.

Indolamines are a family of neurotransmitters that share a common molecular structure (namely, indolamine). A common example of an indolamine is serotonin, a neurotransmitter involved in mood and sleep. Another example of an indolamine is melatonin, which regulates the sleep-wake cycle (circadian rhythm) in humans.

In biochemistry, indolamines are substituted indole compounds that contain an amino group. Examples of indoleamines include the lysergamides.


The pathway for the synthesis of serotonin from tryptophan. Note that all compounds shown are indolamines.

In humans, neurotransmitters in the indolamine family are believed to be produced in the pineal gland.[citation needed] Indolamines are biologically synthesized from the essential amino acid tryptophan.

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