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

Read File Information

read filereadsbasespassed filtersaveragelongestmapped
errorsSample4_S4_L001_R2_001649,93997,286,599100.0%149.7 bases151 bases98.5%
errorsSample4_S4_L001_R1_001650,14697,334,248100.0%149.7 bases151 bases99.0%
total1,300,085194,620,847100.0%149.7 bases151 bases98.7%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,65241.22.5100.0%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≤ 10000010976
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 ≤ 5000232
Total length of all junction candidates (factor times the reference genome length)≤ 0.10.015

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.89923

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 input10:37:57 20 Apr 201610:38:25 20 Apr 201628 seconds
Read alignment to reference genome10:38:25 20 Apr 201610:39:46 20 Apr 20161 minute 21 seconds
Preprocessing alignments for candidate junction identification10:39:46 20 Apr 201610:40:20 20 Apr 201634 seconds
Preliminary analysis of coverage distribution10:40:20 20 Apr 201610:41:44 20 Apr 20161 minute 24 seconds
Identifying junction candidates10:41:44 20 Apr 201610:41:46 20 Apr 20162 seconds
Re-alignment to junction candidates10:41:46 20 Apr 201610:42:02 20 Apr 201616 seconds
Resolving alignments with junction candidates10:42:02 20 Apr 201610:43:10 20 Apr 20161 minute 8 seconds
Creating BAM files10:43:10 20 Apr 201610:44:01 20 Apr 201651 seconds
Tabulating error counts10:44:01 20 Apr 201610:45:10 20 Apr 20161 minute 9 seconds
Re-calibrating base error rates10:45:10 20 Apr 201610:45:11 20 Apr 20161 second
Examining read alignment evidence10:45:11 20 Apr 201610:55:34 20 Apr 201610 minutes 23 seconds
Polymorphism statistics10:55:34 20 Apr 201610:55:34 20 Apr 20160 seconds
Output10:55:34 20 Apr 201610:56:14 20 Apr 201640 seconds
Total 18 minutes 17 seconds