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. Author manuscript; available in PMC: 2007 Mar 16.
Published in final edited form as: Mol Cell. 2006 Dec 28;24(6):917–929. doi: 10.1016/j.molcel.2006.12.002

Figure 4.

Figure 4

Whole-genome ChIP-CHIP shows global recruitment of U snRNPs. (A) A representative view (chromosome 16) of U1, U2, and U5 ChIP-CHIPs hybridized to whole-genome tiling arrays printed with 50-mer probes at 32 bp spacing. Values are expressed as log2 of immunoprecipitation/input ratios. Annotated genes from Saccharomyces Genome Database are shown. Four intron-containing genes are located within the displayed region (orange arrows; point in direction of transcription). (B) U1:U2 ratios as a function of second exon length are shown for genes showing significant enrichment of U snRNPs (~130 genes). Ratios were calculated from the peak value from U1 and U2 IPs.