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Report generated at 2020-05-15 07:24:44

Pipeline type: Histone ChIP-Seq

Peak caller: MACS2

Alignment

Flagstat (raw BAM)

	rep1	ctl1
Total	120482672	141274676
Total(QC-failed)	0	0
Dupes	0	0
Dupes(QC-failed)	0	0
Mapped	116137436	128854233
Mapped(QC-failed)	0	0
% Mapped	96.3900	91.2100
Paired	120482672	141274676
Paired(QC-failed)	0	0
Read1	60241336	70637338
Read1(QC-failed)	0	0
Read2	60241336	70637338
Read2(QC-failed)	0	0
Properly Paired	111424820	93362363
Properly Paired(QC-failed)	0	0
% Properly Paired	92.4800	66.0900
With itself	114781068	122463704
With itself(QC-failed)	0	0
Singletons	1356368	6390529
Singletons(QC-failed)	0	0
% Singleton	1.1300	4.5200
Diff. Chroms	2622907	22420827
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	49008055	29753335
Unmapped Reads	0	0
Unpaired Dupes	0	0
Paired Dupes	310925	298571
Paired Opt. Dupes	1684	729
% Dupes/100	0.0063	0.0100

Library complexity (filtered non-mito BAM)

	rep1	ctl1
Total Read Pairs	48981596	29733908
Distinct Read Pairs	48670954	29435851
One Read Pair	48362210	29140676
Two Read Pairs	306858	292322
NRF = Distinct/Total	0.9937	0.9900
PBC1 = OnePair/Distinct	0.9937	0.9900
PBC2 = OnePair/TwoPair	157.6045	99.6869

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	97394260	58909528
Total(QC-failed)	0	0
Dupes	0	0
Dupes(QC-failed)	0	0
Mapped	97394260	58909528
Mapped(QC-failed)	0	0
% Mapped	100.0000	100.0000
Paired	97394260	58909528
Paired(QC-failed)	0	0
Read1	48697130	29454764
Read1(QC-failed)	0	0
Read2	48697130	29454764
Read2(QC-failed)	0	0
Properly Paired	97394260	58909528
Properly Paired(QC-failed)	0	0
% Properly Paired	100.0000	100.0000
With itself	97394260	58909528
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	203374
Np	0
N optimal	203374
N conservative	203374
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.	160
Corr. Est. Fragment Len.	0.2091
Phantom Peak	50
Corr. Phantom Peak	0.2135
Argmin. Corr.	1500
Min. Corr.	0.1956
NSC	1.0688
RSC	0.7545

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	0.4172

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	0.1505
AUC	0.4959
CHANCE divergence	0.1512
Elbow Point	0.0000
JS Distance	0.7926
Synthetic AUC	0.4965
Synthetic Elbow Point	0.1967
Synthetic JS Distance	0.4973