cDNA and EST support for transcription of intergenic mouse miRNAs.

aEach known miRNA, prediction or other region was counted in one support class only, considering support classes in the order listed in the table.bIntergenic miRNA predictions, excluding miRBase 9.1 miRNAs. Predictions with ambiguous orientation were randomly assigned to a strand for this test.cCRS regions and random genomic regions were selected by sampling the same number of regions as there were miRNA predictions (3476), and then retaining only the intergenic regions.dRegions counted in this table are intergenic with respect to UCSC known genes, but some are still in introns of poorly characterized cDNAs and ESTs. Only introns ��50 kb and with canonical (GT..AG) splice junction sequences were considered.eGaps between ESTs were only considered if they spanned ��50 kb.fBased on the findings in [54], we considered as ��near�� 5��-ESTs within 2.5 kb upstream and 3��-ESTs within 4 kb downstream.