Final answer:
The enzyme Kallikrein is responsible for the release of vasoactive peptides, bradykinin, and plasma kinin. There are two forms of this enzyme: plasma Kallikrein and tissue Kallikrein, both playing significant roles in vasodilation, smooth muscle contraction, and pain induction.
Step-by-step explanation:
The enzyme responsible for the release of vasoactive peptides, bradykinin, and a plasma kinin is Kallikrein. Kallikrein is a part of the blood plasma proteins in the Kinin-Kallikrein system. Its primary function is to help with vasodilation, smooth muscle contraction, and the release of pain-inducing substances in the body.
It accomplishes this by breaking down kininogen, a plasma protein, to release bradykinin, which is a proteolytic enzyme, and other important bioactive peptides.
To better clarify, there are two forms of kallikrein in the human body: plasma kallikrein (produced by the liver) and tissue kallikrein (found in various tissues). These two enzymes, though somewhat different, facilitate the release of vasoactive peptides and help regulate blood pressure. Importantly, they also play a significant role in inflammation and coagulation of the blood.
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