Assertion: l tryptophan | /r/CapableOf | play crucial role
Facets:
Source sentences:
text: L-tryptophan plays a crucial role in the production of both melatonin and serotonin.
text: In addition to serving as a nutrient enhancer, L-tryptophan (Trp) plays crucial roles in the balance between intestinal immune tolerance and gut microbiota maintenance.