MSH2 can be imported into the nucleus without dimerizing to MSH6, in this case, MSH2 is probably dimerized to MSH3 to form MutSβ.
A MSH2 pode ser importada ao núcleo sen dimerizarse coa MSH6; nese caso, a MSH2 probablemente dimerízase coa MSH3 para formar o MutSβ.