English: This is a modification of File:Heme-Synthesis-Chemical-Details-NEW.svg produced by MrNerdy. The porphyrin structures have been reflected (mirror-image) so that the sidechains are in the usually-described order. Subscript "2" in H2O has been rendered bold in the hope that this will correct the inaccurate display of this as HO2 in the thumbnail.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.