breseq  version 0.29.0  revision 8f9c342918e4
mutation predictions | marginal predictions | summary statistics | genome diff | command line log

Read File Information

read filereadsbasespassed filtersaveragelongestmapped
errorsqtrim-BUT6-3_S14_L001_R2_001801,601120,535,600100.0%150.4 bases151 bases98.2%
errorsqtrim-BUT6-3_S14_L001_R1_001801,698120,620,241100.0%150.5 bases151 bases99.6%
total1,603,299241,155,841100.0%150.4 bases151 bases98.9%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,65251.51.298.2%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≤ 1000001186
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 ≤ 500045
Total length of all junction candidates (factor times the reference genome length)≤ 0.10.003

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.84840

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 input12:29:54 02 Jan 201712:30:24 02 Jan 201730 seconds
Read alignment to reference genome12:30:25 02 Jan 201712:35:07 02 Jan 20174 minutes 42 seconds
Preprocessing alignments for candidate junction identification12:35:07 02 Jan 201712:35:56 02 Jan 201749 seconds
Preliminary analysis of coverage distribution12:35:56 02 Jan 201712:37:22 02 Jan 20171 minute 26 seconds
Identifying junction candidates12:37:22 02 Jan 201712:37:23 02 Jan 20171 second
Re-alignment to junction candidates12:37:23 02 Jan 201712:38:23 02 Jan 20171 minute 0 seconds
Resolving alignments with junction candidates12:38:23 02 Jan 201712:39:48 02 Jan 20171 minute 25 seconds
Creating BAM files12:39:48 02 Jan 201712:40:51 02 Jan 20171 minute 3 seconds
Tabulating error counts12:40:51 02 Jan 201712:42:09 02 Jan 20171 minute 18 seconds
Re-calibrating base error rates12:42:09 02 Jan 201712:42:10 02 Jan 20171 second
Examining read alignment evidence12:42:10 02 Jan 201712:52:25 02 Jan 201710 minutes 15 seconds
Polymorphism statistics12:52:25 02 Jan 201712:52:25 02 Jan 20170 seconds
Output12:52:25 02 Jan 201712:52:42 02 Jan 201717 seconds
Total 22 minutes 47 seconds