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Report generated at 2019-10-31 12:25:46

Pipeline type: Histone ChIP-Seq

Peak caller: MACS2

Alignment

Flagstat (raw BAM)

	rep1	ctl1
Total	167720474	244693048
Total(QC-failed)	0	0
Dupes	0	0
Dupes(QC-failed)	0	0
Mapped	166135573	242271295
Mapped(QC-failed)	0	0
% Mapped	99.0600	99.0100
Paired	167720474	244693048
Paired(QC-failed)	0	0
Read1	83860237	122346524
Read1(QC-failed)	0	0
Read2	83860237	122346524
Read2(QC-failed)	0	0
Properly Paired	164134179	235440196
Properly Paired(QC-failed)	0	0
% Properly Paired	97.8600	96.2200
With itself	165604161	241031519
With itself(QC-failed)	0	0
Singletons	531412	1239776
Singletons(QC-failed)	0	0
% Singleton	0.3200	0.5100
Diff. Chroms	939309	3646276
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	70303468	97950917
Unmapped Reads	0	0
Unpaired Dupes	0	0
Paired Dupes	1920230	2549032
Paired Opt. Dupes	29324	15998
% Dupes/100	0.0273	0.0260

Library complexity (filtered non-mito BAM)

	rep1	ctl1
Total Read Pairs	70302690	97923980
Distinct Read Pairs	68382481	95375778
One Read Pair	66505237	92885043
Two Read Pairs	1835173	2436078
NRF = Distinct/Total	0.9727	0.9740
PBC1 = OnePair/Distinct	0.9725	0.9739
PBC2 = OnePair/TwoPair	36.2392	38.1289

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	136766476	190803770
Total(QC-failed)	0	0
Dupes	0	0
Dupes(QC-failed)	0	0
Mapped	136766476	190803770
Mapped(QC-failed)	0	0
% Mapped	100.0000	100.0000
Paired	136766476	190803770
Paired(QC-failed)	0	0
Read1	68383238	95401885
Read1(QC-failed)	0	0
Read2	68383238	95401885
Read2(QC-failed)	0	0
Properly Paired	136766476	190803770
Properly Paired(QC-failed)	0	0
% Properly Paired	100.0000	100.0000
With itself	136766476	190803770
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	91939
Np	0
N optimal	91939
N conservative	91939
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.	230
Corr. Est. Fragment Len.	0.2019
Phantom Peak	50
Corr. Phantom Peak	0.2044
Argmin. Corr.	1500
Min. Corr.	0.1962
NSC	1.0289
RSC	0.6947

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	0.5973

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	0.1526
AUC	0.4957
CHANCE divergence	0.1168
Elbow Point	0.0000
JS Distance	0.8316
Synthetic AUC	0.4998
Synthetic Elbow Point	0.4230
Synthetic JS Distance	0.5093