Modified nucleotides at the 5' end of human U2 snRNA are required for spliceosomal E-complex formation.
RNA (New York, N.Y.) (2004) - Comments
doi: 10.1261/rna.7186504  pubmed: 15525712  pmc: PMC1370681 

Gizem Dönmez, Klaus Hartmuth, Reinhard Lührmann