1. <biochemistry> Compounds of iron complexed in a porphyrin (tetrapyrrole) ring that differ in side chain composition. Haems are the prosthetic groups of cytochromes and are found in most oxygen carrier proteins. ... 2. <prefix> haem-, eaning relating to blood. ... Origin: G. Haima ... (21 Jun 2000) ... Found on http://www.encyclo.co.uk/local/20973
(= heme (USA)) Compounds of iron complexed in a porphyrin (tetrapyrrole) ring that differ in side chain composition. Haems are the prosthetic groups of cytochromes and are found in most oxygen carrier proteins.
Found on http://www.encyclo.co.uk/visitor-contributions.php