Fig5A(9.5) of [doi:10.1128/MCB.23.23.8519-8527.2003] Mol Cell Biol 2003 23(23):8519-8527 [PMID:14612397] Newton K; Petfalski E; Tollervey D; Caceres JF, "Fibrillarin is essential for early development and required for accumulation of an intron-encoded small nucleolar RNA in the mouse." © ASM. Reproduced with permission from Molecular and Cellular Biology. Reuse of any Licensed Material requires permission from ASM. Copyright 2003.