For example, the blue carotenoprotein, linckiacyanin has about 100-200 carotenoid molecules per every complex.[11] In addition, the functions of these pigment-protein complexes also change their chemical structure as well. Carotenoproteins that are within the photosynthetic structure are more common, but complicated. Pigment-protein complexes that are outside of the photosynthetic system are less common, but have a simpler structure. For example, there are only two of these blue astaxanthin-proteins[12] in the jellyfish, Velella velella, contains only about 100 carotenoids per complex.