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-8-91-6-1_S9_L001_R2_0011,164,974340,160,760100.0%292.0 bases301 bases83.7%
errorsSSW-KHP-SSW-8-91-6-1_S9_L001_R1_0011,165,277336,934,462100.0%289.1 bases301 bases96.0%
total2,330,251677,095,222100.0%290.6 bases301 bases89.9%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,652129.62.2100.0%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≤ 10000018588
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 ≤ 500079
Total length of all junction candidates (factor times the reference genome length)≤ 0.10.010

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.84820

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 input01:09:41 17 Mar 201601:10:56 17 Mar 20161 minute 15 seconds
Read alignment to reference genome01:10:56 17 Mar 201601:17:22 17 Mar 20166 minutes 26 seconds
Preprocessing alignments for candidate junction identification01:17:22 17 Mar 201601:18:35 17 Mar 20161 minute 13 seconds
Preliminary analysis of coverage distribution01:18:35 17 Mar 201601:21:59 17 Mar 20163 minutes 24 seconds
Identifying junction candidates01:21:59 17 Mar 201601:22:02 17 Mar 20163 seconds
Re-alignment to junction candidates01:22:02 17 Mar 201601:22:35 17 Mar 201633 seconds
Resolving alignments with junction candidates01:22:35 17 Mar 201601:25:37 17 Mar 20163 minutes 2 seconds
Creating BAM files01:25:37 17 Mar 201601:27:40 17 Mar 20162 minutes 3 seconds
Tabulating error counts01:27:40 17 Mar 201601:31:02 17 Mar 20163 minutes 22 seconds
Re-calibrating base error rates01:31:02 17 Mar 201601:31:03 17 Mar 20161 second
Examining read alignment evidence01:31:03 17 Mar 201601:56:13 17 Mar 201625 minutes 10 seconds
Polymorphism statistics01:56:13 17 Mar 201601:56:14 17 Mar 20161 second
Output01:56:14 17 Mar 201601:56:52 17 Mar 201638 seconds
Total 47 minutes 11 seconds