Chlorocruorin is an oxygen-binding hemeprotein present in the blood plasma of many annelids, particularly certain marine polychaetes. Its affinity for oxygen is weaker than that of most hemoglobins. A dichromatic compound, chlorocruorin is noted for appearing green in dilute solutions, though it appears light red when found in concentrated solutions.
Its structure is very similar to erythrocruorin (which is likewise very similar to multiple subunits of myoglobin) and it contains many 16-17kDa myoglobin-like subunits arranged in a giant complex of over a hundred subunits with interlinking proteins as well with a total weight exceeding 3600kDa. Because of its giant macromolecule structure, chlorocruorin is free floating in blood. The only significant difference between chlorocruorin and erythrocruorin is that chlorocruorin carries an abnormal heme group structure. This enormous macromolecule is typically found free floating in the plasma, and not contained within red blood cells.
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- ^ R. F. Ewer, H. Munro Fox (9 August 1940). "On the Function of Chlorocruorin". Proceedings of the Royal Society of London (Series B, Biological Sciences) 129 (855): 137–153. doi:10.1098/rspb.1940.0033. JSTOR 82389.
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- ^ H. Munro Fox (1 February 1926). "Chlorocruorin: A Pigment Allied to Haemoglobin". Proceedings of the Royal Society of London (Series B, Biological Sciences) 99 (696): 199–220. doi:10.1098/rspb.1926.0008. JSTOR 81088.
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- ^ H. Munro Fox (19 October 1949). "On Chlorocruorin and Haemoglobin". Proceedings of the Royal Society of London (Series B, Biological Sciences) 136 (884): 378–388. doi:10.1098/rspb.1949.0031. JSTOR 82565.
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- ^ Lamy JN, Green BN, Toulmond A, Wall JS, Weber RE, Vinogradov SN (19 December 1996). "Giant Hexagonal Bilayer Hemoglobins". Chem Rev 96 (8): 3113–3124. doi:10.1021/cr9600058. PMID 11848854.
Proteins: hemeproteins GlobinsSubunitsTetramersCompoundsOther humanNonhumanChlorocruorin · ErythrocruorinOther Other see also disorders of globin and globulin proteins This annelid-related article is a stub. You can help Wikipedia by expanding it. This protein-related article is a stub. You can help Wikipedia by expanding it.