The fact that these proteins are unique to multicellular organisms suggests that they play cell-specific roles (Aoyagia, 2000 and references therein).
(these proteins; are; unique to multicellular organisms) (The fact that these proteins are unique to multicellular organisms; suggests; that they play cell-specific roles) Context(The fact that these proteins are unique to multicellular organisms suggests,List([0, 75))):(they; play; cell-specific roles)
The fact that these proteins are unique to multicellular organisms suggests,List([0, 75))
these proteins The fact that these proteins are unique to multicellular organisms they
are suggests play
unique to multicellular organisms
that they play cell-specific roles
cell-specific roles