Heme vs Haem - What's the difference?
heme | haem | Alternative forms |
The component of hemoglobin (and other hemoproteins) responsible for binding oxygen, consists of an iron ion that binds oxygen and a porphyrin ring that binds the globin molecules; one molecule binds one molecule of oxygen.
* 2008 , John Greer, John Foerster, George Rodgers, Fixos Paraskevas, Bertil Glader, Daniel Arber, Robert Means Jr, Wintrobe's Clinical Hematology: Volume One: Twelfth Edition , page 141:
The component of haemoglobin responsible for binding oxygen, consists of an iron ion that binds oxygen and a porphyrin ring that binds the globin molecules; one molecule binds one molecule of oxygen.
*2010 , Pierre Cornelis and Simon Andrews (editors), Iron Uptake and Homeostasis in Microorganisms , page 17:
*:Haem' is ubiquitous, abundant and necessary for energy metabolism. Most bacteria have a '''haem''' biosynthesis pathway, but nevertheless, since '''haem''' is a major source of iron (an essential metal), microbes take up exogenous ' haem to retrieve iron.
Haem is a alternative form of heme.
As nouns the difference between heme and haem
is that heme is the component of hemoglobin (and other hemoproteins) responsible for binding oxygen, consists of an iron ion that binds oxygen and a porphyrin ring that binds the globin molecules; one molecule binds one molecule of oxygen while haem is the component of haemoglobin responsible for binding oxygen, consists of an iron ion that binds oxygen and a porphyrin ring that binds the globin molecules; one molecule binds one molecule of oxygen.heme
English
Alternative forms
* haem (British )Noun
- The binding of oxygen to the iron molecule causes the hemoglobin molecule to undergo conformational changes that affect the binding of oxygen to other heme sites.