Rhode, B., Hartmuth, K., Westhof, E., & Luehrmann, R. (2006). Proximity of conserved U6 and U2 snRNA elements to the 5' splice site region in activated spliceosomes. EMBO Journal, 25(11), 2475-2486. Retrieved from http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1478171.