Credit: Image: Courtesy of the Shilatifard lab, Stowers Institute for Medical Research
The “Little Elongation Complex” (LEC) is required for transcriptional elongation of small nuclear RNAs by RNA polymerase II (Pol II). Ice1, a subunit of the LEC (green) is associated with snRNA genes on Drosophila polytene chromosomes. Ser2 phosphorylated Pol II is shown in red.