... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > biomacromolecule > information biomacromolecule > protein > conjugated protein > metalloprotein > iron protein > hemoprotein > cytochrome > ferrocytochrome > ferrocytochrome c > ferrocytochrome c-552.5

... > chemical entity > molecular entity > polyatomic entity > macromolecule > biomacromolecule > information biomacromolecule > protein > conjugated protein > metalloprotein > iron protein > hemoprotein > cytochrome > ferrocytochrome > ferrocytochrome c > ferrocytochrome c-552.5

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > biomacromolecule > information biomacromolecule > protein > conjugated protein > metalloprotein > iron protein > hemoprotein > cytochrome > cytochrome c > ferrocytochrome c > ferrocytochrome c-552.5

... > chemical entity > molecular entity > polyatomic entity > macromolecule > biomacromolecule > information biomacromolecule > protein > conjugated protein > metalloprotein > iron protein > hemoprotein > cytochrome > cytochrome c > ferrocytochrome c > ferrocytochrome c-552.5

... > chemical entity > molecular entity > main group molecular entity > p-block molecular entity > carbon group molecular entity > organic molecular entity > biomacromolecule > information biomacromolecule > protein > conjugated protein > metalloprotein > iron protein > hemoprotein > cytochrome > cytochrome c > cytochrome c-552.5 > ferrocytochrome c-552.5

... > chemical entity > molecular entity > polyatomic entity > macromolecule > biomacromolecule > information biomacromolecule > protein > conjugated protein > metalloprotein > iron protein > hemoprotein > cytochrome > cytochrome c > cytochrome c-552.5 > ferrocytochrome c-552.5