
Association of SL proteins with snRNAs. (A,C–E) Northern blots of RNA extracted from IPs with antibodies shown at the top, blotted and probed with 32P-labeled oligonucleotide probes to the snRNAs shown at the left. WT, sut-1 (sut-1 mutant strain). (B) sut-1 mutant lacks SL26p. Western blot of increasing amounts of WT and sut-1 mutant worm proteins, probed with SL26p and SL21p antibodies.










