Heme B, haem B, or protoheme IX, chemical formula and structure

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Heme B, haem B, or protoheme IX, chemical formula and structure. Contained in hemoglobin, a protein for oxygen transport. A single iron atom is bound by four nitrogen atoms in a plane porphyrin ring.

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Photo credit: © PeterHermesFurian / Alamy / Afripics
License: Royalty Free
Model Released: No

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