Both the bacterial and archaeal LSm proteins polymerize to homomeric rings , which is the ancestral condition .
The three archaeal LSm proteins ( Sm1 , Sm2 and Sm3 ) also cluster as a group , distinct from the eukaryote LSm proteins .
Both the bacterial and archaeal eukaryote proteins polymerize to homomeric rings , which is the ancestral eukaryote .
The three archaeal LSm proteins ( Sm1 , Sm2 and Sm3 ) also cluster as a group , distinct from the eukaryote LSm proteins .