Numbers of predicted target sites reassigned to a different mRNA region, or gained or lost, among different isoforms of the same transcriptional region (gene), for the 2943 human protein-coding genes annotated (RefSeq) as having more than one transcriptional isoform, under six sets of defining cond

All defining conditions include <6 mismatches-and-GU-pairs at nt ≥15, and 40% FE threshold, but differ by extent of base-paired region, and by correction (or not) for edge effects. In blocks A–B, the top number in each cell refers to total; the middle number, to genes with exactly two transcriptional isoforms; and the bottom number, to genes with ≥3 transcriptional isoforms. “Target sites remaining in same region” means neither reassigned, nor gained or lost, among different isoforms.