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Report generated at 2019-10-13 13:27:25

Pipeline type: Histone ChIP-Seq

Peak caller: MACS2

Alignment

Flagstat (raw BAM)

	rep1	ctl1
Total	120340548	125060354
Total(QC-failed)	0	0
Dupes	0	0
Dupes(QC-failed)	0	0
Mapped	116625122	115723438
Mapped(QC-failed)	0	0
% Mapped	96.9100	92.5300
Paired	120340548	125060354
Paired(QC-failed)	0	0
Read1	60170274	62530177
Read1(QC-failed)	0	0
Read2	60170274	62530177
Read2(QC-failed)	0	0
Properly Paired	114538519	106456049
Properly Paired(QC-failed)	0	0
% Properly Paired	95.1800	85.1200
With itself	115525887	108232132
With itself(QC-failed)	0	0
Singletons	1099235	7491306
Singletons(QC-failed)	0	0
% Singleton	0.9100	5.9900
Diff. Chroms	437932	1197727
Diff. Chroms (QC-failed)	0	0

Marking duplicates (filtered BAM)

Filtered out (samtools view -F 1804):

read unmapped (0x4)
mate unmapped (0x8)
not primary alignment (0x100)
read fails platform/vendor quality checks (0x200)
read is PCR or optical duplicate (0x400)

	rep1	ctl1
Unpaired Reads	0	0
Paired Reads	48682356	42322290
Unmapped Reads	0	0
Unpaired Dupes	0	0
Paired Dupes	1890080	491333
Paired Opt. Dupes	3601	3358
% Dupes/100	0.0388	0.0116

Library complexity (filtered non-mito BAM)

	rep1	ctl1
Total Read Pairs	48681063	42292215
Distinct Read Pairs	46791037	41801473
One Read Pair	44991445	41322617
Two Read Pairs	1717702	470011
NRF = Distinct/Total	0.9612	0.9884
PBC1 = OnePair/Distinct	0.9615	0.9885
PBC2 = OnePair/TwoPair	26.1928	87.9184

Mitochondrial reads are filtered out.

NRF (non redundant fraction)
PBC1 (PCR Bottleneck coefficient 1)
PBC2 (PCR Bottleneck coefficient 2)
PBC1 is the primary measure. Provisionally

0-0.5 is severe bottlenecking
0.5-0.8 is moderate bottlenecking
0.8-0.9 is mild bottlenecking
0.9-1.0 is no bottlenecking

Flagstat (filtered/deduped BAM)

Filtered and duplicates removed

	rep1	ctl1
Total	93584552	83661914
Total(QC-failed)	0	0
Dupes	0	0
Dupes(QC-failed)	0	0
Mapped	93584552	83661914
Mapped(QC-failed)	0	0
% Mapped	100.0000	100.0000
Paired	93584552	83661914
Paired(QC-failed)	0	0
Read1	46792276	41830957
Read1(QC-failed)	0	0
Read2	46792276	41830957
Read2(QC-failed)	0	0
Properly Paired	93584552	83661914
Properly Paired(QC-failed)	0	0
% Properly Paired	100.0000	100.0000
With itself	93584552	83661914
With itself(QC-failed)	0	0
Singletons	0	0
Singletons(QC-failed)	0	0
% Singleton	0.0000	0.0000
Diff. Chroms	0	0
Diff. Chroms (QC-failed)	0	0

Peak calling

Reproducibility QC and peak detection statistics

The number of peaks is capped at 300K for peak-caller MACS2

	overlap
Nt	0
N1	27345
Np	0
N optimal	27345
N conservative	27345
Optimal Set	rep1-pr
Conservative Set	rep1-pr
Rescue Ratio	0.0000
Self Consistency Ratio	1.0000
Reproducibility	pass

Overlapping peaks

N1: Replicate 1 self-consistent overlapping peaks (comparing two pseudoreplicates generated by subsampling Rep1 reads)
N2: Replicate 2 self-consistent overlapping peaks (comparing two pseudoreplicates generated by subsampling Rep2 reads)
Nt: True Replicate consisten overlapping peaks (comparing true replicates Rep1 vs Rep2 )
Np: Pooled-pseudoreplicate consistent overlapping peaks (comparing two pseudoreplicates generated by subsampling pooled reads from Rep1 and Rep2 )
Self-consistency Ratio: max(N1,N2) / min (N1,N2)
Rescue Ratio: max(Np,Nt) / min (Np,Nt)
Reproducibility Test: If Self-consistency Ratio >2 AND Rescue Ratio > 2, then 'Fail' else 'Pass'

Enrichment

Strand cross-correlation measures

Performed on subsampled reads (15M)

	rep1
Reads	15000000
Est. Fragment Len.	115
Corr. Est. Fragment Len.	0.1767
Phantom Peak	50
Corr. Phantom Peak	0.1989
Argmin. Corr.	1500
Min. Corr.	0.1719
NSC	1.0276
RSC	0.1756

NOTE1: For SE datasets, reads from replicates are randomly subsampled.
NOTE2: For PE datasets, the first end of each read-pair is selected and the reads are then randomly subsampled.

Normalized strand cross-correlation coefficient (NSC) = col9 in outFile
Relative strand cross-correlation coefficient (RSC) = col10 in outFile
Estimated fragment length = col3 in outFile, take the top value

Fraction of reads in overlapping peaks

	rep1-pr
Fraction of Reads in Peak	0.0104

ppr: Overlapping peaks comparing pooled pseudo replicates
rep1-pr: Overlapping peaks comparing pseudoreplicates from replicate 1
rep2-pr: Overlapping peaks comparing pseudoreplicates from replicate 2
repi-repj: Overlapping peaks comparing true replicates (rep i vs. rep j)

Other quality metrics

Fingerprint and Jensen-Shannon distance

	rep1
% genome enriched	0.3301
AUC	0.4958
CHANCE divergence	0.1009
Elbow Point	0.0000
JS Distance	0.5035
Synthetic AUC	0.5031
Synthetic Elbow Point	0.0192
Synthetic JS Distance	0.1991