Microinjection analyses of nuclear import of bBSA molecules tagged with synthetic peptides of Ser-substituted EBNA-1 NLS. (A) bBSA-E1NLS, (B) bBSA-E1NLS(383APAA), (C) bBSA-E1NLS(pS383), (D) bBSA-E1NLS(pS385), (E) bBSA-E1NLS(pS386), (F) bBSA-E1NLS(S383A), (G) bBSA-E1NLS(S385A), (H) bBSA-E1NLS(S386A), (I) bBSA-E1NLS(S383D), (J) bBSA-E1NLS(S385D), (K) bBSA-E1NLS(383DPDD).