breseq  version 0.26.0  
mutation predictions | marginal predictions | summary statistics | genome diff | command line log

Read File Information

read filereadsbasespassed filtersaveragelongestmapped
errors2Xyl_S4_L001_R2_0011,251,945361,221,127100.0%288.5 bases301 bases80.1%
errors2Xyl_S4_L001_R1_0011,251,985357,974,071100.0%285.9 bases301 bases96.9%
total2,503,930719,195,198100.0%287.2 bases301 bases88.5%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,652141.23.9100.0%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≤ 1000003691
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 ≤ 5000165
Total length of all junction candidates (factor times the reference genome length)≥ 0.10.022

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.87270

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≤ 0
Number of bases that at least one read must overlap each uniquely aligned side of a predicted junction≥ 6

Read Alignment Evidence

optionvalue
ModeFull Polymorphism
Ploidy1 (haploid)
Consensus mutation E-value cutoff10
Polymorphism E-value cutoff2
Polymorphism frequency cutoff0.05
Polymorphism minimum coverage each strand2
Polymorphism bias cutoff0.001
Predict indel polymorphismsYES
Skip indel polymorphisms in homopolymers runs of ≥3 bases
Skip base substitutions when they create a homopolymer flanked on each side by ≥2 bases

Execution Times

stepstartendelapsed
Read and reference sequence file input03:07:44 17 Apr 201503:08:45 17 Apr 20151 minute 1 second
Read alignment to reference genome03:08:45 17 Apr 201503:16:02 17 Apr 20157 minutes 17 seconds
Preprocessing alignments for candidate junction identification03:16:02 17 Apr 201503:17:17 17 Apr 20151 minute 15 seconds
Preliminary analysis of coverage distribution03:17:17 17 Apr 201503:20:56 17 Apr 20153 minutes 39 seconds
Identifying junction candidates03:20:56 17 Apr 201503:20:57 17 Apr 20151 second
Re-alignment to junction candidates03:20:57 17 Apr 201503:21:34 17 Apr 201537 seconds
Resolving alignments with junction candidates03:21:34 17 Apr 201503:23:28 17 Apr 20151 minute 54 seconds
Creating BAM files03:23:28 17 Apr 201503:25:43 17 Apr 20152 minutes 15 seconds
Tabulating error counts03:25:43 17 Apr 201503:29:12 17 Apr 20153 minutes 29 seconds
Re-calibrating base error rates03:29:12 17 Apr 201503:29:13 17 Apr 20151 second
Examining read alignment evidence03:29:13 17 Apr 201506:21:07 17 Apr 20152 hours 51 minutes 54 seconds
Polymorphism statistics06:21:07 17 Apr 201506:21:08 17 Apr 20151 second
Output06:21:08 17 Apr 201506:21:56 17 Apr 201548 seconds
Total 3 hours 14 minutes 12 seconds