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Metalloproteins

   Also found in: Medical, Wikipedia 0.01 sec.
Metalloproteins 

a class of compound proteins, complexes of proteins with metal ions.

As a rule, the bond between the protein and the metal (for example, iron, copper, zinc, magnesium, manganese, vanadium, molybdenum) is weak; nonetheless, removal of the metal (for example, with inorganic acids) destroys the structure and functional properties of the complex. Metalloproteins are widely distributed in nature and perform important biological functions, such as oxygen transport in invertebrates (hemerythrin, hemocyanin), iron storage and transport (ferritin, transferritin), and copper storage and transport (ceruloplasmin). The group includes numerous enzymes (for example, certain peptidases, tyrosinase, and aspartic acid oxidase).

REFERENCES

Haurowitz, F. Khimiia i funktsiia belkov. Moscow, 1965. (Translated from English.)
Severin, S. E., P. P. Filippov, and G. A. Kochetov. “Metalloenzimy.” Uspekhi sovremennoi biologii, 1970, vol. 69, issue 2.
Vallee, B. L., and W. E. C. Wacker. “Metalloproteins.” In The Proteins, vol. 5. Edited by H. Neurath. New York-London, 1970.


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95 Hardcover QP519 This text for students with a background in the life sciences or related fields serves as an introduction to biomolecular EPR spectroscopy, its basic principles, theory, and applications, including low-spin and high-spin metalloproteins, spin traps and labels, interaction between active sites, and redox systems.
Although there must be interspecific differences in the antioxidant responses of these metalloproteins to hypoxic or anoxic environmental stresses, it is evidenced herein that MT may be an important component of the antioxidant system that endures the anaerobic tolerance of P.
Of the upregulated genes, 41 are involved in inflammation, notably that for IL-8 (54-fold increase) and those for matrix metalloproteins, MMP-1 and MMP-3 (increased 92- and 64-fold, respectively).
 
 
 
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