ChEBI

A role played by a substance that can react readily with, and thereby eliminate, radicals.

Any bacterial metabolite produced during a metabolic reaction in Escherichia coli.

Any mammalian metabolite produced during a metabolic reaction in humans (Homo sapiens).

An endogenous compound that is used to transmit information across the synapse between a neuron and another cell.

A molecular messenger in which the molecule is specifically involved in transmitting information between cells. Such molecules are released from the cell sending the signal, cross over the gap between cells by diffusion, and interact with specific receptors in another cell, triggering a response in that cell by activating a series of enzyme controlled reactions which lead to changes inside the cell.

Any mammalian metabolite produced during a metabolic reaction in a mouse (Mus musculus).

An agent that causes an increase in the expansion of a bronchus or bronchial tubes.

A drug used to cause dilation of the blood vessels.