MISO annotations

[rlv]

I have downloaded MISO annotation files for hg19, applied the MISo algorithm for a BAM aligned to hg19, and noticed that some annotations' event names have coordinates that (upon checking in the UCSC browser) do not refer to exons; e.g:

event_name      miso_posterior_mean     ci_low  ci_high isoforms        counts  assigned_counts chrom   strand  mRNA_starts  mRNA_ends
chr1:65463023:65463145|65463141:+@chr1:65464334:65470420:+      0.55    0.04    0.99    'chr1:65463023:65463145|65463141:+@chr1:65464334:65470420:+.A.coreAndExt_chr1:65463023:65463145|65463141:+@chr1:65464334:65470420:+.A.dn','chr1:65463023:65463145|65463141:+@chr1:65464334:65470420:+.B.core_chr1:65463023:65463145|65463141:+@chr1:65464334:65470420:+.B.dn'  (1,1):170       0:76,1:94       chr1    +       65690435,65690435       65697832,65697832

(from the output summary of the A5SS events)

Any idea why?