4270920 + 0 in total (QC-passed reads + QC-failed reads)
0 + 0 duplicates
4270920 + 0 mapped (100.00%:-nan%)
4270920 + 0 paired in sequencing
2227378 + 0 read1
2043542 + 0 read2
3496634 + 0 properly paired (81.87%:-nan%)
3943126 + 0 with itself and mate mapped
327794 + 0 singletons (7.68%:-nan%)
446326 + 0 with mate mapped to a different chr
0 + 0 with mate mapped to a different chr (mapQ>=5)