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-8-91-5-1_S8_L001_R2_0011,199,189347,417,936100.0%289.7 bases301 bases83.7%
errorsSSW-KHP-SSW-8-91-5-1_S8_L001_R1_0011,199,493343,550,555100.0%286.4 bases301 bases95.9%
total2,398,682690,968,491100.0%288.1 bases301 bases89.8%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,652132.22.4100.0%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≤ 10000015472
Coverage evenness (position-hash) score of junction candidates≥ 2≥ 3
Test this many junction candidates (n). May be smaller if not enough passed the coverage evenness threshold100 ≤ n ≤ 500091
Total length of all junction candidates (factor times the reference genome length)≤ 0.10.012

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.84252

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 input03:15:07 17 Mar 201603:16:23 17 Mar 20161 minute 16 seconds
Read alignment to reference genome03:16:23 17 Mar 201603:22:42 17 Mar 20166 minutes 19 seconds
Preprocessing alignments for candidate junction identification03:22:42 17 Mar 201603:23:55 17 Mar 20161 minute 13 seconds
Preliminary analysis of coverage distribution03:23:55 17 Mar 201603:27:20 17 Mar 20163 minutes 25 seconds
Identifying junction candidates03:27:20 17 Mar 201603:27:23 17 Mar 20163 seconds
Re-alignment to junction candidates03:27:23 17 Mar 201603:27:57 17 Mar 201634 seconds
Resolving alignments with junction candidates03:27:57 17 Mar 201603:30:53 17 Mar 20162 minutes 56 seconds
Creating BAM files03:30:53 17 Mar 201603:32:56 17 Mar 20162 minutes 3 seconds
Tabulating error counts03:32:56 17 Mar 201603:36:22 17 Mar 20163 minutes 26 seconds
Re-calibrating base error rates03:36:22 17 Mar 201603:36:23 17 Mar 20161 second
Examining read alignment evidence03:36:23 17 Mar 201604:01:41 17 Mar 201625 minutes 18 seconds
Polymorphism statistics04:01:41 17 Mar 201604:01:41 17 Mar 20160 seconds
Output04:01:41 17 Mar 201604:02:22 17 Mar 201641 seconds
Total 47 minutes 15 seconds