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-BUT2-9_S4_L001_R1_001972,287146,336,213100.0%150.5 bases151 bases99.8%
errorsqtrim-BUT2-9_S4_L001_R2_001972,182146,253,970100.0%150.4 bases151 bases99.1%
total1,944,469292,590,183100.0%150.5 bases151 bases99.5%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,65262.81.298.3%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≤ 100000344
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 ≤ 500012
Total length of all junction candidates (factor times the reference genome length)≤ 0.10.001

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.81905

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 input07:42:22 02 Jan 201707:43:03 02 Jan 201741 seconds
Read alignment to reference genome07:43:04 02 Jan 201707:48:25 02 Jan 20175 minutes 21 seconds
Preprocessing alignments for candidate junction identification07:48:25 02 Jan 201707:49:24 02 Jan 201759 seconds
Preliminary analysis of coverage distribution07:49:24 02 Jan 201707:51:01 02 Jan 20171 minute 37 seconds
Identifying junction candidates07:51:01 02 Jan 201707:51:01 02 Jan 20170 seconds
Re-alignment to junction candidates07:51:01 02 Jan 201707:52:03 02 Jan 20171 minute 2 seconds
Resolving alignments with junction candidates07:52:03 02 Jan 201707:53:48 02 Jan 20171 minute 45 seconds
Creating BAM files07:53:48 02 Jan 201707:55:04 02 Jan 20171 minute 16 seconds
Tabulating error counts07:55:04 02 Jan 201707:56:36 02 Jan 20171 minute 32 seconds
Re-calibrating base error rates07:56:36 02 Jan 201707:56:37 02 Jan 20171 second
Examining read alignment evidence07:56:37 02 Jan 201708:08:44 02 Jan 201712 minutes 7 seconds
Polymorphism statistics08:08:44 02 Jan 201708:08:44 02 Jan 20170 seconds
Output08:08:44 02 Jan 201708:09:01 02 Jan 201717 seconds
Total 26 minutes 38 seconds