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-3-164-7-1_S17_L001_R2_001279,13783,818,08199.9%300.3 bases301 bases75.6%
errorsSSW-KHP-SSW-3-164-7-1_S17_L001_R1_001279,49184,007,280100.0%300.6 bases301 bases78.1%
total558,628167,825,36199.9%300.4 bases301 bases76.8%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,65227.61.8100.0%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≤ 1000002000
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 ≤ 5000178
Total length of all junction candidates (factor times the reference genome length)≤ 0.10.023

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.96328

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 input22:21:45 05 Mar 201622:22:03 05 Mar 201618 seconds
Read alignment to reference genome22:22:04 05 Mar 201622:23:37 05 Mar 20161 minute 33 seconds
Preprocessing alignments for candidate junction identification22:23:37 05 Mar 201622:23:53 05 Mar 201616 seconds
Preliminary analysis of coverage distribution22:23:53 05 Mar 201622:24:33 05 Mar 201640 seconds
Identifying junction candidates22:24:33 05 Mar 201622:24:33 05 Mar 20160 seconds
Re-alignment to junction candidates22:24:33 05 Mar 201622:24:43 05 Mar 201610 seconds
Resolving alignments with junction candidates22:24:43 05 Mar 201622:25:16 05 Mar 201633 seconds
Creating BAM files22:25:16 05 Mar 201622:25:37 05 Mar 201621 seconds
Tabulating error counts22:25:37 05 Mar 201622:26:22 05 Mar 201645 seconds
Re-calibrating base error rates22:26:22 05 Mar 201622:26:23 05 Mar 20161 second
Examining read alignment evidence22:26:23 05 Mar 201622:32:32 05 Mar 20166 minutes 9 seconds
Polymorphism statistics22:32:32 05 Mar 201622:32:32 05 Mar 20160 seconds
Output22:32:32 05 Mar 201622:32:49 05 Mar 201617 seconds
Total 11 minutes 3 seconds