The definition of cytochrome c is not defined in terms of the heme group.

Cytochrome b/b6 non-covalently binds two heme groups, known as b562 and b566.

The R state, with oxygen bound to a heme group, has a different conformation and does not allow this interaction.

In particular, they looked at the heme group, which contains the iron atom that is essential for the decolorizing reaction.

Each molecule has four heme groups, and their interaction with various molecules alters the exact color.

It also contains a prosthetic heme group, required for NO binding.

A cytochrome is a kind of electron-transferring protein that contains at least one heme group.

This folding pattern contains a pocket that strongly binds the heme group.

The heme group, relative to ubiquinone, is shown in image 4.

The letter in P450 represents the word pigment as these enzymes are red because of their heme group.