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).
cis-heme d hydroxychlorin γ-spirolactone
(CHEBI:47459)
has functional parent
heme dcis-diol
(CHEBI:62811)
heme dcis-diol(2−)
(CHEBI:62814)
is conjugate base of
heme dcis-diol
(CHEBI:62811)