Heme
Health dictionary
Untitled Document
Search :      

Art dictionary
Financial dictionary
Hollywood dictionary
Insurance dictionary
Literature dictionary
Real Estate dictionary
Tourism dictionary

 
  Heme



Heme

   The color-furnishing portion of hemoglobin. It is found free in tissues and as the prosthetic group in many hemeproteins.

RELATED TERMS
--------------------------------------

Hemoglobin
Hemoglobin is a substance contained within the red blood cells and is responsible for their color. It has the unique property of combining reversibly with oxygen and is the medium by which oxygen is transported within the body. It takes up oxygen as blood passes through the lungs and releases it as blood passes through the tissues.

Hemeproteins
Proteins that contain an iron-porphyrin, or heme, prosthetic group resembling that of hemoglobin. (From Lehninger, Principles of Biochemistry, 1982, p480)



SIMILAR TERMS
--------------------------------------



PREVIOUS AND NEXT TERMS
--------------------------------------

Heme Controlled Translational Repressor
A dsRNA-activated cAMP-independent protein serine/threonine kinase that is induced by interferon. In the presence of dsRNA and ATP, eiF-2 kinase autophosphorylates on several serine and threonine residues. The phosphorylated enzyme catalyzes the phosphorylation of the alpha subunit of eIF-2, leading to the inhibition of protein synthesis. EC 2.7.10.-

Heme Controlled Repressor
A dsRNA-activated cAMP-independent protein serine/threonine kinase that is induced by interferon. In the presence of dsRNA and ATP, eiF-2 kinase autophosphorylates on several serine and threonine residues. The phosphorylated enzyme catalyzes the phosphorylation of the alpha subunit of eIF-2, leading to the inhibition of protein synthesis. EC 2.7.10.-

Heme Controlled Inhibitor
A dsRNA-activated cAMP-independent protein serine/threonine kinase that is induced by interferon. In the presence of dsRNA and ATP, eiF-2 kinase autophosphorylates on several serine and threonine residues. The phosphorylated enzyme catalyzes the phosphorylation of the alpha subunit of eIF-2, leading to the inhibition of protein synthesis. EC 2.7.10.-

Heme b
The color-furnishing portion of hemoglobin. It is found free in tissues and as the prosthetic group in many hemeproteins.

Heme aa3 Cytochrome Oxidase
The terminal oxidase of the respiratory chain. It collects electrons that are transferred from reduced CYTOCHROME C and donates them to molecular oxygen, which is then reduced to water. It is composed of CYTOCHROME A and CYTOCHROME B, two copper atoms, and 13 different protein subunits, three of which are encoded by the mitochondrial DNA. It is also called complex IV of the respiratory chain. (from Scriver et al., The Metabolic & Molecular Bases of Inherited Disease, 8th ed, p2261 and p2368)

Heme

Hematurias
Presence of blood in the urine.

Hematoxylin
A dye obtained from the heartwood of logwood (Haematoxylon campechianum Linn., Leguminosae) used as a stain in microscopy and in the manufacture of ink.

Hematoxins
Substances, usually of biological origin, that destroy blood cells; they may be antibodies or other immunologic factors, toxins, enzymes, etc.; hemotoxins are toxic to blood in general, including the clotting mechanism; hematotoxins may refer to the hematopoietic system.

Heme-Regulated eIF-2alpha Kinase
A dsRNA-activated cAMP-independent protein serine/threonine kinase that is induced by interferon. In the presence of dsRNA and ATP, eiF-2 kinase autophosphorylates on several serine and threonine residues. The phosphorylated enzyme catalyzes the phosphorylation of the alpha subunit of eIF-2, leading to the inhibition of protein synthesis. EC 2.7.10.-

Heme-Controlled Translational Repressor
A dsRNA-activated cAMP-independent protein serine/threonine kinase that is induced by interferon. In the presence of dsRNA and ATP, eiF-2 kinase autophosphorylates on several serine and threonine residues. The phosphorylated enzyme catalyzes the phosphorylation of the alpha subunit of eIF-2, leading to the inhibition of protein synthesis. EC 2.7.10.-

   We thank you for using the Health Dictionary to search for Heme. If you have a better definition for Heme than the one presented here, please let us know by making use of the suggest a term option. This definition of Heme may be disputed by other professionals. Our attempt is to provide easy definitions on Heme and any other medical topic for the public at large.
 
This dictionary contains 59020 terms.      









  
                    © Health Dictionary 2005 - All rights reserved -

   eme / hme / hee / hem / hheme / heeme / hemme / hemee / yeme / ueme / jeme / neme / beme / geme / teme / h3me / h4me / hrme / hfme / hdme / hsme / hwme / hene / heje / heke / he,e / he e / hem3 / hem4 / hemr / hemf / hemd / hems / hemw /