An Astaxanthin-Binding Ependymin-Related Purple Protein Responsible for the Coloration of a Marine Purple Sponge, Haliclona sp
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Although marine sponges display strikingly diverse colors, the molecular basis of this color diversity remains largely unknown. Recently, the blue coloration of Haliclona sp. was attributed to a water-soluble carotenoprotein that binds orange astaxanthin (AXT)... ...