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Report generated at 2020-06-30 00:03:39

Pipeline type: Histone ChIP-Seq

Peak caller: MACS2

Alignment

Flagstat (raw BAM)

	rep1	ctl1
Total	49076446	73722417
Total(QC-failed)	0	0
Dupes	0	0
Dupes(QC-failed)	0	0
Mapped	41769153	71938102
Mapped(QC-failed)	0	0
% Mapped	85.1100	97.5800
Paired	0	0
Paired(QC-failed)	0	0
Read1	0	0
Read1(QC-failed)	0	0
Read2	0	0
Read2(QC-failed)	0	0
Properly Paired	0	0
Properly Paired(QC-failed)	0	0
% Properly Paired	0.0000	0.0000
With itself	0	0
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

Marking duplicates (filtered BAM)

Filtered out (samtools view -F 1804):

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

	rep1	ctl1
Unpaired Reads	33746540	57166562
Paired Reads	0	0
Unmapped Reads	0	0
Unpaired Dupes	7383526	4126722
Paired Dupes	0	0
Paired Opt. Dupes	0	0
% Dupes/100	0.2188	0.0722

Library complexity (filtered non-mito BAM)

	rep1	ctl1
Total Reads	33745186	57122283
Distinct Reads	26574808	53124984
One Read	20814491	49583173
Two Reads	4623121	3247061
NRF = Distinct/Total	0.7875	0.9300
PBC1 = OneRead/Distinct	0.7832	0.9333
PBC2 = OneRead/TwoReads	4.5023	15.2702

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	26363014	53039840
Total(QC-failed)	0	0
Dupes	0	0
Dupes(QC-failed)	0	0
Mapped	26363014	53039840
Mapped(QC-failed)	0	0
% Mapped	100.0000	100.0000
Paired	0	0
Paired(QC-failed)	0	0
Read1	0	0
Read1(QC-failed)	0	0
Read2	0	0
Read2(QC-failed)	0	0
Properly Paired	0	0
Properly Paired(QC-failed)	0	0
% Properly Paired	0.0000	0.0000
With itself	0	0
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	73312
Np	0
N optimal	73312
N conservative	73312
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.	210
Corr. Est. Fragment Len.	0.1708
Phantom Peak	40
Corr. Phantom Peak	0.1703
Argmin. Corr.	1500
Min. Corr.	0.1564
NSC	1.0926
RSC	1.0410

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	0.1863

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	0.2327
AUC	0.4894
CHANCE divergence	0.1607
Elbow Point	0.0000
JS Distance	0.6650
Synthetic AUC	0.5181
Synthetic Elbow Point	0.1882
Synthetic JS Distance	0.3213