The most common snRNA components of these complexes are known, respectively, as: U1 spliceosomal RNA, U2 spliceosomal RNA, U4 spliceosomal RNA, U5 spliceosomal RNA, and U6 spliceosomal RNA.
Najčešće sastavnice snRNK ovih kompleksa su znani, respektivno, kao: U1 spliceosomska RNK, U2 spliceosomska RNK, U4 spliceosomska RNK, U5 spliceosomska RNK i U6 spliceosomska RNK.