Look up: Heme


  1. heme
    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 ...
    Found op http://www.medilexicon.com/medicaldictionary.php?t=39874

  2. heme
    [n] - a complex red organic pigment containing iron and other atoms to which oxygen binds
    Found op http://www.webdictionary.co.uk/definition.php?query=heme

  3. 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 [
    Found op http://sis.nlm.nih.gov/enviro/iupacglossary/glossaryh.html

  4. heme
    See haem.
    Found op http://www.encyclo.co.uk/visitor-contributions.php

  5. heme
    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. ... ...
    Found op http://www.mondofacto.com/facts/dictionary?heme

  6. heme
    (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...
    Found op http://www.encyclo.co.uk/local/21001

  7. heme
    (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...
    Found op http://www.britannica.com/eb/a-z/h/35



  1. Heme
    A heme (American English) or haem (British English) is a prosthetic group that consists of an iron atom contained in the center of a large heterocyclic organic ring called a porphyrin. Not all porphyrins contain iron, but a substantial fraction of porphyrin-containing metalloproteins have heme as t...
    Found op http://en.wikipedia.org/wiki/Heme

  2. heme
    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 ...
    Found op http://www.daviddarling.info/encyclopedia/H/heme.html

  3. heme
    heme: see coenzyme.
    Found op http://www.infoplease.com/ce6/sci/A0914275.html

  4. heme
    (hem) The iron-containing red pigment that, together with the protein globin, forms hemoglobin.
    Found op http://www.mhhe.com/biosci/abio/glossary.mhtml

  5. heme
    (hem) The iron-containing red pigment that, together with the protein globin, forms hemoglobin.
    Found op http://www.mhhe.com/biosci/abio/glossary.mhtml

  6. heme
    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.
    Found op http://www.cancer.gov/dictionary?expand=H

  7. heme
    1) Blood component 2) Blood pigment 3) Complex, red organic pigment 4) Deep-red blood pigment 5) Haem 6) Haemitin 7) Hematin 8) Iron carrier in blood 9) Pigment 10) Protoheme
    Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/heme/1

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