breseq  version 0.27.1  revision 87c22d663cc3
mutation predictions | marginal predictions | summary statistics | genome diff | command line log

Read File Information

read filereadsbasespassed filtersaveragelongestmapped
errorsSSW-KHP-SSW-7-90-2-1_S26_L001_R2_001638,955191,851,54099.9%300.3 bases301 bases78.7%
errorsSSW-KHP-SSW-7-90-2-1_S26_L001_R1_001639,772192,295,912100.0%300.6 bases301 bases81.4%
total1,278,727384,147,45299.9%300.4 bases301 bases80.0%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,65265.61.9100.0%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≤ 1000006143
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 ≤ 5000589
Total length of all junction candidates (factor times the reference genome length)≤ 0.10.077

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.91525

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 input03:09:58 06 Mar 201603:10:39 06 Mar 201641 seconds
Read alignment to reference genome03:10:39 06 Mar 201603:13:40 06 Mar 20163 minutes 1 second
Preprocessing alignments for candidate junction identification03:13:40 06 Mar 201603:14:18 06 Mar 201638 seconds
Preliminary analysis of coverage distribution03:14:18 06 Mar 201603:15:54 06 Mar 20161 minute 36 seconds
Identifying junction candidates03:15:54 06 Mar 201603:15:56 06 Mar 20162 seconds
Re-alignment to junction candidates03:15:56 06 Mar 201603:16:22 06 Mar 201626 seconds
Resolving alignments with junction candidates03:16:22 06 Mar 201603:17:54 06 Mar 20161 minute 32 seconds
Creating BAM files03:17:54 06 Mar 201603:18:50 06 Mar 201656 seconds
Tabulating error counts03:18:50 06 Mar 201603:20:30 06 Mar 20161 minute 40 seconds
Re-calibrating base error rates03:20:30 06 Mar 201603:20:31 06 Mar 20161 second
Examining read alignment evidence03:20:31 06 Mar 201603:32:53 06 Mar 201612 minutes 22 seconds
Polymorphism statistics03:32:53 06 Mar 201603:32:53 06 Mar 20160 seconds
Output03:32:53 06 Mar 201603:33:21 06 Mar 201628 seconds
Total 23 minutes 23 seconds