breseq  version 0.27.1  revision 87c22d663cc3
mutation predictions | marginal predictions | summary statistics | genome diff | command line log

Read File Information

read filereadsbasespassed filtersaveragelongestmapped
errorsSample2_S2_L001_R2_0011,058,617158,393,475100.0%149.6 bases151 bases98.2%
errorsSample2_S2_L001_R1_0011,058,999158,466,728100.0%149.6 bases151 bases99.0%
total2,117,616316,860,203100.0%149.6 bases151 bases98.6%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,65267.32.6100.0%Escherichia coli str. K-12 substr. MG1655, complete genome.
total4,641,652100.0%

fit dispersion is the ratio of the variance to the mean for the negative binomial fit. It is =1 for Poisson and >1 for over-dispersed data.

New Junction Evidence

Junction Candidates Tested

optionlimitactual
Number of alignment pairs examined for constructing junction candidates≤ 10000021117
Coverage evenness (position-hash) score of junction candidates≥ 2≥ 2
Test this many junction candidates (n). May be smaller if not enough passed the coverage evenness threshold100 ≤ n ≤ 5000646
Total length of all junction candidates (factor times the reference genome length)≤ 0.10.043

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.85441

pr(no read start) is the probability that there will not be an aligned read whose first base matches a given position on a given strand.

Final Junction Predictions

optionvalue
Coverage evenness (position-hash) score of predicted junctions must be≥ 3
Skew score of predicted junction (−log10 probability of unusual coverage evenness) must be≤ 3
Number of bases that at least one read must overlap each uniquely aligned side of a predicted junction≥ 1

Read Alignment Evidence

optionvalue
ModeConsensus/Mixed Base
Ploidy1 (haploid)
Consensus mutation E-value cutoff10
Consensus frequency cutoff0.8
Consensus minimum coverage each strandOFF
Polymorphism E-value cutoff10
Polymorphism frequency cutoff0.2
Polymorphism minimum coverage each strandOFF
Polymorphism bias cutoffOFF
Predict indel polymorphismsYES
Skip indel polymorphisms in homopolymers runs ofOFF
Skip base substitutions when they create a homopolymer flanked on each side byOFF

Execution Times

stepstartendelapsed
Read and reference sequence file input12:42:44 20 Apr 201612:43:33 20 Apr 201649 seconds
Read alignment to reference genome12:43:33 20 Apr 201612:45:27 20 Apr 20161 minute 54 seconds
Preprocessing alignments for candidate junction identification12:45:27 20 Apr 201612:46:33 20 Apr 20161 minute 6 seconds
Preliminary analysis of coverage distribution12:46:33 20 Apr 201612:48:56 20 Apr 20162 minutes 23 seconds
Identifying junction candidates12:48:56 20 Apr 201612:48:58 20 Apr 20162 seconds
Re-alignment to junction candidates12:48:58 20 Apr 201612:49:27 20 Apr 201629 seconds
Resolving alignments with junction candidates12:49:27 20 Apr 201612:51:03 20 Apr 20161 minute 36 seconds
Creating BAM files12:51:03 20 Apr 201612:52:29 20 Apr 20161 minute 26 seconds
Tabulating error counts12:52:29 20 Apr 201612:54:19 20 Apr 20161 minute 50 seconds
Re-calibrating base error rates12:54:19 20 Apr 201612:54:20 20 Apr 20161 second
Examining read alignment evidence12:54:20 20 Apr 201613:12:13 20 Apr 201617 minutes 53 seconds
Polymorphism statistics13:12:13 20 Apr 201613:12:14 20 Apr 20161 second
Output13:12:14 20 Apr 201613:13:21 20 Apr 20161 minute 7 seconds
Total 30 minutes 37 seconds