▁not ▁interact ▁with ▁the ▁alpha ▁sub unit ▁of ▁the ▁re ceptor . ▁Such ▁imm unity ▁signal ▁mole cules ▁are ▁useful ▁in ▁cancer ▁treatment . ▁While ▁the ▁natural ▁IL - 2 ▁suff ers ▁from ▁to x icity ▁due ▁to ▁an ▁interaction ▁with ▁the ▁alpha ▁sub unit , ▁the ▁designed ▁protein ▁is ▁much ▁sa fer , ▁at ▁least ▁in ▁animal ▁models . ▁Ros etta ▁mole cular ▁model ing ▁suite ▁was ▁recently ▁used ▁to ▁accur ately ▁predict ▁the ▁atomic - scale ▁structure ▁of ▁the ▁S AR S - Co V - 2 ▁sp ike ▁protein ▁weeks ▁before ▁it ▁could ▁be ▁measured ▁in ▁the ▁lab . ▁ ▁Development ▁history ▁and ▁branches ▁ ▁Origin ally ▁introduced ▁by ▁the ▁Baker ▁labor atory ▁in ▁ 1 9 9 8 ▁as ▁an ▁ab ▁init io ▁approach ▁to ▁structure ▁prediction , ▁Ros etta ▁has ▁since ▁branch ed ▁into ▁several ▁development ▁streams ▁and ▁distinct ▁services . ▁ ▁The ▁Ros etta ▁platform ▁der ives ▁its ▁name ▁from ▁the ▁Ros etta ▁Stone , ▁as ▁it ▁attempts ▁to ▁de ci pher ▁the ▁struct ural ▁" mean ing " ▁of ▁prote ins ' ▁am ino ▁acid ▁sequences . ▁More ▁than ▁seven   year s ▁after ▁Ros etta ' s ▁first ▁appearance , ▁the ▁Ros etta @ home ▁project ▁was ▁released ▁( i . e ., ▁announced ▁as ▁no ▁longer ▁beta ) ▁on ▁October ▁ 6 , ▁ 2 0 0 5 . ▁Many ▁of ▁the ▁gradu ate ▁students ▁and ▁other ▁research ers ▁involved ▁in ▁Ros etta ' s ▁initial ▁development ▁have ▁since ▁moved ▁to ▁other ▁univers ities