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Table 1 Categories of sequence reads in the 2 breast libraries.

From: Comprehensive analysis of microRNAs in breast cancer

Library Normal Tumor
# clean reads 2 785 848 38 335 412
% miRNA reads 75.24% 84.79%
# detected pre-miRNAs 455 689
# detected miRNAs 631 906
# detected miRNAs at opposite arm 54 150
% miRNA reads with 3' end modification 17.65% 12.45%
  1. According to miRBase 17 annotation, there are 1424 human pre-miRNAs, encoding 1733 mature miRNAs. These pre-miRNAs and mature miRNAs result in 1902 pairs of pre-miRNA/miRNA.