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Report generated at 2020-05-20 07:36:36

Pipeline type: Histone ChIP-Seq

Peak caller: MACS2

Alignment

Flagstat (raw BAM)

	rep1	ctl1
Total	81680016	112353936
Total(QC-failed)	0	0
Dupes	0	0
Dupes(QC-failed)	0	0
Mapped	80469715	110770243
Mapped(QC-failed)	0	0
% Mapped	98.5200	98.5900
Paired	81680016	112353936
Paired(QC-failed)	0	0
Read1	40840008	56176968
Read1(QC-failed)	0	0
Read2	40840008	56176968
Read2(QC-failed)	0	0
Properly Paired	80151941	108511153
Properly Paired(QC-failed)	0	0
% Properly Paired	98.1300	96.5800
With itself	80190104	110354562
With itself(QC-failed)	0	0
Singletons	279611	415681
Singletons(QC-failed)	0	0
% Singleton	0.3400	0.3700
Diff. Chroms	10531	150895
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	37902365	48323075
Unmapped Reads	0	0
Unpaired Dupes	0	0
Paired Dupes	2062166	444698
Paired Opt. Dupes	1378	3241
% Dupes/100	0.0544	0.0092

Library complexity (filtered non-mito BAM)

	rep1	ctl1
Total Read Pairs	37898951	48311362
Distinct Read Pairs	35836957	47868098
One Read Pair	34088890	47445446
Two Read Pairs	1569852	412601
NRF = Distinct/Total	0.9456	0.9908
PBC1 = OnePair/Distinct	0.9512	0.9912
PBC2 = OnePair/TwoPair	21.7147	114.9911

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	71680398	95756754
Total(QC-failed)	0	0
Dupes	0	0
Dupes(QC-failed)	0	0
Mapped	71680398	95756754
Mapped(QC-failed)	0	0
% Mapped	100.0000	100.0000
Paired	71680398	95756754
Paired(QC-failed)	0	0
Read1	35840199	47878377
Read1(QC-failed)	0	0
Read2	35840199	47878377
Read2(QC-failed)	0	0
Properly Paired	71680398	95756754
Properly Paired(QC-failed)	0	0
% Properly Paired	100.0000	100.0000
With itself	71680398	95756754
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	126970
Np	0
N optimal	126970
N conservative	126970
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.	0.2708
Phantom Peak	55
Corr. Phantom Peak	0.2076
Argmin. Corr.	1500
Min. Corr.	0.1726
NSC	1.5685
RSC	2.8031

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	0.6861

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	0.0775
AUC	0.4952
CHANCE divergence	0.2983
Elbow Point	0.0000
JS Distance	0.8568
Synthetic AUC	0.4961
Synthetic Elbow Point	0.5095
Synthetic JS Distance	0.6237