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-BUT7-7_S17_L001_R2_001658,73699,091,864100.0%150.4 bases151 bases98.7%
errorsqtrim-BUT7-7_S17_L001_R1_001658,83499,158,796100.0%150.5 bases151 bases99.8%
total1,317,570198,250,660100.0%150.5 bases151 bases99.2%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,65242.51.298.3%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≤ 100000498
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 ≤ 500023
Total length of all junction candidates (factor times the reference genome length)≤ 0.10.002

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.87240

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 input08:36:23 02 Jan 201708:36:48 02 Jan 201725 seconds
Read alignment to reference genome08:36:49 02 Jan 201708:40:34 02 Jan 20173 minutes 45 seconds
Preprocessing alignments for candidate junction identification08:40:34 02 Jan 201708:41:16 02 Jan 201742 seconds
Preliminary analysis of coverage distribution08:41:16 02 Jan 201708:42:25 02 Jan 20171 minute 9 seconds
Identifying junction candidates08:42:25 02 Jan 201708:42:25 02 Jan 20170 seconds
Re-alignment to junction candidates08:42:25 02 Jan 201708:43:08 02 Jan 201743 seconds
Resolving alignments with junction candidates08:43:08 02 Jan 201708:44:18 02 Jan 20171 minute 10 seconds
Creating BAM files08:44:18 02 Jan 201708:45:12 02 Jan 201754 seconds
Tabulating error counts08:45:12 02 Jan 201708:46:17 02 Jan 20171 minute 5 seconds
Re-calibrating base error rates08:46:17 02 Jan 201708:46:18 02 Jan 20171 second
Examining read alignment evidence08:46:18 02 Jan 201708:55:21 02 Jan 20179 minutes 3 seconds
Polymorphism statistics08:55:21 02 Jan 201708:55:21 02 Jan 20170 seconds
Output08:55:21 02 Jan 201708:55:38 02 Jan 201717 seconds
Total 19 minutes 14 seconds