Centipedal hemocyanin: its structure and its implications for arthropod phylogeny.
The oxygen carrier hemocyanin occurs in the blood of Scutigera coleoptrata, a uniramous arthropod, as well as the crustaceans and chelicerates. The native polymer appears to be composed of substructures having the same size and electron-dense image as those of other arthropod hemocyanins but assembled into a unique multiple and arranged in a unique configuration. The simplest explanation of these findings is that the arthropod hemocyanins have a common origin, exemplifying a derived (as opposed to primitive) character shared by each of the three living groups.
D000596:Amino Acids / Q000032:analysis; D000818:Animals; D001181:Arthropods; D005075:Biological Evolution; D004591:Electrophoresis, Polyacrylamide Gel; D006433:Hemocyanins / Q000032:analysis*; D008854:Microscopy, Electron; D008970:Molecular Weight
D000596:Amino Acids; D006433:Hemocyanins