1) Blood component 2) Blood pigment 3) Complex red organic pigment 4) Crimson color 5) Deep red blood pigment 6) Deep red pigment 7) Deep-red blood pigment 8) Fe-binding complex 9) Haem 10) Haemitin 11) Hematin 12) Iron carrier in blood 13) Iron-containing pigment 14) Iron-rich blood pigment 15) Myoglobin component
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https://www.crosswordclues.com/clue/heme
1) Haem 2) Haemitin 3) Hematin 4) Protoheme
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https://www.crosswordclues.com/clue/heme
A heme (American English) or haem (British English) is a chemical compound of a type known as a prosthetic group consisting of an Fe2+ (ferrous) ion contained in the centre of a large heterocyclic organic ring called a porphyrin, made up of four pyrrolic groups joined together by methine bridges. Not all porphyrins contain iron, but a substantial ...
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http://en.wikipedia.org/wiki/Heme
haem Complex consisting of an iron ion coordinated to a
porphyrin acting as a tetradentate ligand, and to one or two axial ligands. After [
3]
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http://sis.nlm.nih.gov/enviro/iupacglossary/glossaryh.html
(from the article `hemoglobin`) Each hemoglobin molecule is made up of four heme groups surrounding a globin group, forming a tetrahedral structure. Heme, which accounts for only 4 ... ...Hemoglobin is a protein; a molecule contains four polypeptide chains (a tetramer), each chain consisting of more than 140 amino acids. To each ... ...
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http://www.britannica.com/eb/a-z/h/35
The part of certain molecules that contains iron. The heme part of hemoglobin is the substance inside red blood cells that binds to oxygen in the lungs and carries it to the tissues.
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http://www.cancer.gov/dictionary?expand=H
The heme unit of which there are four in each hemoglobin molecule is planar porphyrin structure, linked to the globin proteins which make up the bulk of the hemoglobin molecule via the amino acid histidine, part of which is shown here above the plane of the porphyrin ring. The histidine coordinates ...
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http://www.daviddarling.info/encyclopedia/H/heme.html
Synonym for haem ... 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) ...
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http://www.encyclo.co.uk/local/20973
(hēm) the nonprotein, insoluble, iron protoporphyrin constituent of hemoglobin, of various other respiratory pigments, and of many cells, both animal and vegetable. It is an iron compound and constitutes the pigment portion or protein-free part of the hemoglobin molecule, and is responsible for its oxygen-car...
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http://www.encyclo.co.uk/local/21001
the iron-based pigment in red blood cells, a component of hemoglobin that is released when red blood cells are broken down.
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http://www.encyclo.co.uk/local/22225
See haem.
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http://www.encyclo.co.uk/visitor-contributions.php
Type: Term Pronunciation: hēm Definitions: 1. The porphyrin chelate of iron in which the iron is Fe(II) (or Fe2+); the oxygen-carrying, color-furnishing, prosthetic group of hemoglobin. 2. Iron complexed with nonporphyrins but related tetrapyrrole structures (biliverdin heme). 3. Iron chelated with any porphyrin, irrespective of the valence st...
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http://www.medilexicon.com/medicaldictionary.php?t=39874
(hem) The iron-containing red pigment that, together with the protein globin, forms hemoglobin.
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http://www.mhhe.com/biosci/abio/glossary.mhtml
[
n] - a complex red organic pigment containing iron and other atoms to which oxygen binds
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http://www.webdictionary.co.uk/definition.php?query=heme
A small molecule that consists of an iron atom contained in the center of a large heterocyclic ring called a porphyrin. Heme is involved in many metabolic reactions that occur in the body and is sequestered by specific heme-binding proteins such as hemoglobin.
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https://www.bcm.edu/departments/molecular-virology-and-microbiology/emergin
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