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

Read File Information

read filereadsbasespassed filtersaveragelongestmapped
errors7_S7_L001_R2_001694,797103,877,635100.0%149.5 bases151 bases97.3%
errors7_S7_L001_R1_001694,808103,879,267100.0%149.5 bases151 bases99.6%
total1,389,605207,756,902100.0%149.5 bases151 bases98.5%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,65240.13.9100.0%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≤ 1000007630
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 ≤ 5000290
Total length of all junction candidates (factor times the reference genome length)≤ 0.10.019

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.90204

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 input01:38:27 21 Feb 201601:38:47 21 Feb 201620 seconds
Read alignment to reference genome01:38:47 21 Feb 201601:39:37 21 Feb 201650 seconds
Preprocessing alignments for candidate junction identification01:39:37 21 Feb 201601:40:04 21 Feb 201627 seconds
Preliminary analysis of coverage distribution01:40:04 21 Feb 201601:41:14 21 Feb 20161 minute 10 seconds
Identifying junction candidates01:41:14 21 Feb 201601:41:15 21 Feb 20161 second
Re-alignment to junction candidates01:41:15 21 Feb 201601:41:27 21 Feb 201612 seconds
Resolving alignments with junction candidates01:41:27 21 Feb 201601:42:29 21 Feb 20161 minute 2 seconds
Creating BAM files01:42:29 21 Feb 201601:43:12 21 Feb 201643 seconds
Tabulating error counts01:43:12 21 Feb 201601:44:19 21 Feb 20161 minute 7 seconds
Re-calibrating base error rates01:44:19 21 Feb 201601:44:20 21 Feb 20161 second
Examining read alignment evidence01:44:20 21 Feb 201601:52:24 21 Feb 20168 minutes 4 seconds
Polymorphism statistics01:52:24 21 Feb 201601:52:24 21 Feb 20160 seconds
Output01:52:24 21 Feb 201601:53:04 21 Feb 201640 seconds
Total 14 minutes 37 seconds