Assertion: dopamine | /r/AtLocation | blood plasma
Facets:
value: at levels
type: OTHER
Source sentences:
text: Dopamine is found in blood plasma at levels comparable to those of epinephrine, but in humans, over 95% of the dopamine in the plasma is in the form of dopamine sulfate, a conjugate produced by the enzyme sulfotransferase 1A3/1A4 acting on free dopamine.