A derivative of the corrin nucleus, which contains four reduced or partly reduced pyrrole rings joined in a macrocycle by three =C‒ groups and one direct carbon-carbon bond linking α positions.
Stars
This entity has been manually annotated by the ChEBI Team.
An organic molecule or ion (usually a metal ion) that is required by an enzyme for its activity. It may be attached either loosely (coenzyme) or tightly (prosthetic group).