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

Read File Information

read filereadsbasespassed filtersaveragelongestmapped
errors4Gly_S8_L001_R2_001437,327124,588,372100.0%284.9 bases301 bases90.2%
errors4Gly_S8_L001_R1_001437,337125,509,271100.0%287.0 bases301 bases88.9%
total874,664250,097,643100.0%285.9 bases301 bases89.5%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,65247.63.3100.0%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≤ 100000928
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 ≤ 500079
Total length of all junction candidates (factor times the reference genome length)≥ 0.10.010

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.94706

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 input02:07:27 17 Apr 201502:07:48 17 Apr 201521 seconds
Read alignment to reference genome02:07:48 17 Apr 201502:10:42 17 Apr 20152 minutes 54 seconds
Preprocessing alignments for candidate junction identification02:10:42 17 Apr 201502:11:08 17 Apr 201526 seconds
Preliminary analysis of coverage distribution02:11:08 17 Apr 201502:12:20 17 Apr 20151 minute 12 seconds
Identifying junction candidates02:12:20 17 Apr 201502:12:21 17 Apr 20151 second
Re-alignment to junction candidates02:12:21 17 Apr 201502:12:32 17 Apr 201511 seconds
Resolving alignments with junction candidates02:12:32 17 Apr 201502:13:11 17 Apr 201539 seconds
Creating BAM files02:13:11 17 Apr 201502:13:53 17 Apr 201542 seconds
Tabulating error counts02:13:53 17 Apr 201502:15:07 17 Apr 20151 minute 14 seconds
Re-calibrating base error rates02:15:07 17 Apr 201502:15:08 17 Apr 20151 second
Examining read alignment evidence02:15:08 17 Apr 201503:07:12 17 Apr 201552 minutes 4 seconds
Polymorphism statistics03:07:12 17 Apr 201503:07:13 17 Apr 20151 second
Output03:07:13 17 Apr 201503:07:44 17 Apr 201531 seconds
Total 1 hour 17 seconds