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Report generated at 2020-06-05 13:48:33

Pipeline type: Histone ChIP-Seq

Peak caller: MACS2

Alignment

Flagstat (raw BAM)

	rep1	ctl1
Total	62850510	104471744
Total(QC-failed)	0	0
Dupes	0	0
Dupes(QC-failed)	0	0
Mapped	62130273	101485188
Mapped(QC-failed)	0	0
% Mapped	98.8500	97.1400
Paired	62850510	104471744
Paired(QC-failed)	0	0
Read1	31425255	52235872
Read1(QC-failed)	0	0
Read2	31425255	52235872
Read2(QC-failed)	0	0
Properly Paired	61827236	100570496
Properly Paired(QC-failed)	0	0
% Properly Paired	98.3700	96.2700
With itself	61985157	101112353
With itself(QC-failed)	0	0
Singletons	145116	372835
Singletons(QC-failed)	0	0
% Singleton	0.2300	0.3600
Diff. Chroms	58344	208160
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	28323492	44719965
Unmapped Reads	0	0
Unpaired Dupes	0	0
Paired Dupes	705745	1561842
Paired Opt. Dupes	2582	6437
% Dupes/100	0.0249	0.0349

Library complexity (filtered non-mito BAM)

	rep1	ctl1
Total Read Pairs	28319496	44378069
Distinct Read Pairs	27613850	42863103
One Read Pair	26923018	41409228
Two Read Pairs	676314	1404847
NRF = Distinct/Total	0.9751	0.9659
PBC1 = OnePair/Distinct	0.9750	0.9661
PBC2 = OnePair/TwoPair	39.8085	29.4760

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	55235494	86316246
Total(QC-failed)	0	0
Dupes	0	0
Dupes(QC-failed)	0	0
Mapped	55235494	86316246
Mapped(QC-failed)	0	0
% Mapped	100.0000	100.0000
Paired	55235494	86316246
Paired(QC-failed)	0	0
Read1	27617747	43158123
Read1(QC-failed)	0	0
Read2	27617747	43158123
Read2(QC-failed)	0	0
Properly Paired	55235494	86316246
Properly Paired(QC-failed)	0	0
% Properly Paired	100.0000	100.0000
With itself	55235494	86316246
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	196019
Np	0
N optimal	196019
N conservative	196019
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.	145
Corr. Est. Fragment Len.	0.1767
Phantom Peak	50
Corr. Phantom Peak	0.1782
Argmin. Corr.	1500
Min. Corr.	0.1749
NSC	1.0105
RSC	0.5620

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	0.2393

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	0.2103
AUC	0.4945
CHANCE divergence	0.1707
Elbow Point	0.0000
JS Distance	0.6598
Synthetic AUC	0.5022
Synthetic Elbow Point	0.2089
Synthetic JS Distance	0.3640