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Report generated at 2020-05-10 14:10:10

Pipeline type: Histone ChIP-Seq

Peak caller: MACS2

Alignment

Flagstat (raw BAM)

	rep1	ctl1
Total	73215024	55171578
Total(QC-failed)	0	0
Dupes	0	0
Dupes(QC-failed)	0	0
Mapped	64764368	47068627
Mapped(QC-failed)	0	0
% Mapped	88.4600	85.3100
Paired	73215024	55171578
Paired(QC-failed)	0	0
Read1	36607512	27585789
Read1(QC-failed)	0	0
Read2	36607512	27585789
Read2(QC-failed)	0	0
Properly Paired	61991715	35348053
Properly Paired(QC-failed)	0	0
% Properly Paired	84.6700	64.0700
With itself	63357469	44252810
With itself(QC-failed)	0	0
Singletons	1406899	2815817
Singletons(QC-failed)	0	0
% Singleton	1.9200	5.1000
Diff. Chroms	955417	5846948
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	27400763	12505350
Unmapped Reads	0	0
Unpaired Dupes	0	0
Paired Dupes	367304	404711
Paired Opt. Dupes	3646	2139
% Dupes/100	0.0134	0.0324

Library complexity (filtered non-mito BAM)

	rep1	ctl1
Total Read Pairs	27392077	12502680
Distinct Read Pairs	27024908	12098062
One Read Pair	26661968	11705353
Two Read Pairs	358752	381354
NRF = Distinct/Total	0.9866	0.9676
PBC1 = OnePair/Distinct	0.9866	0.9675
PBC2 = OnePair/TwoPair	74.3187	30.6942

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	54066918	24201278
Total(QC-failed)	0	0
Dupes	0	0
Dupes(QC-failed)	0	0
Mapped	54066918	24201278
Mapped(QC-failed)	0	0
% Mapped	100.0000	100.0000
Paired	54066918	24201278
Paired(QC-failed)	0	0
Read1	27033459	12100639
Read1(QC-failed)	0	0
Read2	27033459	12100639
Read2(QC-failed)	0	0
Properly Paired	54066918	24201278
Properly Paired(QC-failed)	0	0
% Properly Paired	100.0000	100.0000
With itself	54066918	24201278
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	99998
Np	0
N optimal	99998
N conservative	99998
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.	260
Corr. Est. Fragment Len.	0.2022
Phantom Peak	50
Corr. Phantom Peak	0.2021
Argmin. Corr.	1500
Min. Corr.	0.1911
NSC	1.0583
RSC	1.0093

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	0.2056

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	0.1484
AUC	0.4944
CHANCE divergence	0.2955
Elbow Point	0.0000
JS Distance	0.7011
Synthetic AUC	0.4978
Synthetic Elbow Point	0.1025
Synthetic JS Distance	0.4361