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-5-160-1-1_S20_L001_R2_001449,908135,095,52499.9%300.3 bases301 bases78.8%
errorsSSW-KHP-SSW-5-160-1-1_S20_L001_R1_001450,475135,395,292100.0%300.6 bases301 bases81.3%
total900,383270,490,81699.9%300.4 bases301 bases80.1%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,65246.41.8100.0%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≤ 1000003040
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 ≤ 5000316
Total length of all junction candidates (factor times the reference genome length)≤ 0.10.041

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.93910

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 input22:55:27 05 Mar 201622:55:58 05 Mar 201631 seconds
Read alignment to reference genome22:55:58 05 Mar 201622:58:27 05 Mar 20162 minutes 29 seconds
Preprocessing alignments for candidate junction identification22:58:27 05 Mar 201622:58:54 05 Mar 201627 seconds
Preliminary analysis of coverage distribution22:58:54 05 Mar 201623:00:00 05 Mar 20161 minute 6 seconds
Identifying junction candidates23:00:00 05 Mar 201623:00:01 05 Mar 20161 second
Re-alignment to junction candidates23:00:01 05 Mar 201623:00:17 05 Mar 201616 seconds
Resolving alignments with junction candidates23:00:17 05 Mar 201623:01:18 05 Mar 20161 minute 1 second
Creating BAM files23:01:18 05 Mar 201623:01:53 05 Mar 201635 seconds
Tabulating error counts23:01:53 05 Mar 201623:03:05 05 Mar 20161 minute 12 seconds
Re-calibrating base error rates23:03:05 05 Mar 201623:03:06 05 Mar 20161 second
Examining read alignment evidence23:03:06 05 Mar 201623:12:21 05 Mar 20169 minutes 15 seconds
Polymorphism statistics23:12:21 05 Mar 201623:12:22 05 Mar 20161 second
Output23:12:22 05 Mar 201623:12:47 05 Mar 201625 seconds
Total 17 minutes 20 seconds