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

Read File Information

read filereadsbasespassed filtersaveragelongestmapped
errorspgi-4_S2_L001_R1_001962,320275,851,967100.0%286.7 bases301 bases99.1%
errorspgi-4_S2_L001_R2_001962,273204,823,070100.0%212.9 bases218 bases97.8%
total1,924,593480,675,037100.0%249.8 bases301 bases98.4%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,652105.93.3100.0%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≤ 1000002040
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 ≤ 500085
Total length of all junction candidates (factor times the reference genome length)≤ 0.10.011

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.87087

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 input20:03:18 17 Jun 201620:04:02 17 Jun 201644 seconds
Read alignment to reference genome20:04:03 17 Jun 201620:06:41 17 Jun 20162 minutes 38 seconds
Preprocessing alignments for candidate junction identification20:06:41 17 Jun 201620:07:33 17 Jun 201652 seconds
Preliminary analysis of coverage distribution20:07:33 17 Jun 201620:10:14 17 Jun 20162 minutes 41 seconds
Identifying junction candidates20:10:14 17 Jun 201620:10:14 17 Jun 20160 seconds
Re-alignment to junction candidates20:10:14 17 Jun 201620:10:37 17 Jun 201623 seconds
Resolving alignments with junction candidates20:10:37 17 Jun 201620:12:46 17 Jun 20162 minutes 9 seconds
Creating BAM files20:12:46 17 Jun 201620:14:23 17 Jun 20161 minute 37 seconds
Tabulating error counts20:14:23 17 Jun 201620:17:01 17 Jun 20162 minutes 38 seconds
Re-calibrating base error rates20:17:01 17 Jun 201620:17:02 17 Jun 20161 second
Examining read alignment evidence20:17:02 17 Jun 201620:35:51 17 Jun 201618 minutes 49 seconds
Polymorphism statistics20:35:51 17 Jun 201620:35:51 17 Jun 20160 seconds
Output20:35:51 17 Jun 201620:36:22 17 Jun 201631 seconds
Total 33 minutes 3 seconds