using anti-rnp and anti-sm antibodies to analyze various subcellular fractions , we found that most , if not all , of the u1 snrna cellular content is associated with the polypeptide ( s ) bearing the rnp determinant ( in interphase and mitotic cells ) and with the polypeptide ( s ) carrying the sm determinant ( in mitotic cells ) .
C0007634
cellular
C0021798
interphase