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

Read File Information

read filereadsbasespassed filtersaveragelongestmapped
errorsHM2_S12_L001_R2_0011,453,572218,697,123100.0%150.5 bases151 bases96.5%
errorsHM2_S12_L001_R1_0011,453,568218,689,020100.0%150.4 bases151 bases99.7%
total2,907,140437,386,143100.0%150.5 bases151 bases98.1%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,65291.92.4100.0%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≤ 1000006146
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 ≤ 5000425
Total length of all junction candidates (factor times the reference genome length)≤ 0.10.028

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.75601

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 input21:59:50 20 Feb 201622:00:30 20 Feb 201640 seconds
Read alignment to reference genome22:00:30 20 Feb 201622:02:09 20 Feb 20161 minute 39 seconds
Preprocessing alignments for candidate junction identification22:02:09 20 Feb 201622:03:08 20 Feb 201659 seconds
Preliminary analysis of coverage distribution22:03:08 20 Feb 201622:05:46 20 Feb 20162 minutes 38 seconds
Identifying junction candidates22:05:46 20 Feb 201622:05:46 20 Feb 20160 seconds
Re-alignment to junction candidates22:05:46 20 Feb 201622:06:10 20 Feb 201624 seconds
Resolving alignments with junction candidates22:06:10 20 Feb 201622:08:17 20 Feb 20162 minutes 7 seconds
Creating BAM files22:08:17 20 Feb 201622:10:00 20 Feb 20161 minute 43 seconds
Tabulating error counts22:10:00 20 Feb 201622:12:18 20 Feb 20162 minutes 18 seconds
Re-calibrating base error rates22:12:18 20 Feb 201622:12:19 20 Feb 20161 second
Examining read alignment evidence22:12:19 20 Feb 201622:27:50 20 Feb 201615 minutes 31 seconds
Polymorphism statistics22:27:50 20 Feb 201622:27:51 20 Feb 20161 second
Output22:27:51 20 Feb 201622:28:26 20 Feb 201635 seconds
Total 28 minutes 36 seconds