<p><b>Copyright information:</b></p><p>Taken from "Diversity and evolution of phycobilisomes in marine spp.: a comparative genomics study"</p><p>http://genomebiology.com/2007/8/12/R259</p><p>Genome Biology 2007;8(12):R259-R259.</p><p>Published online 5 Dec 2007</p><p>PMCID:PMC2246261.</p><p></p> PBS cores are generally composed of three cylinders, but in some chromatic adapters possessing an extended L, it is likely composed of two additional half cylinders (see, for example, [58]). In pigment type 1, rods are composed of C-PC only; in pigment type 2, rods are composed of either C-PC, or R-PCIII and a PEI-like phycobiliprotein; in pigment type 3, rods comprise R-PC and two PE types (PEI and PEII). Cells of the latter pigment type bind PEB and PUB at a low (3a), medium (3b), high (3c) or variable (3d or type IV chromatic adapter) ratio. Colored stars indicate the pigment type of each strain (see Figure 1 for color code)
