breseq  version 0.29.0  revision 8f9c342918e4
mutation predictions | marginal predictions | summary statistics | genome diff | command line log

Read File Information

read filereadsbasespassed filtersaveragelongestmapped
errorsqtrim-BUT4-4_S8_L001_R1_001786,256118,270,450100.0%150.4 bases151 bases99.5%
errorsqtrim-BUT4-4_S8_L001_R2_001786,162118,181,421100.0%150.3 bases151 bases98.4%
total1,572,418236,451,871100.0%150.4 bases151 bases98.9%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,65250.41.298.2%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≤ 1000001211
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 ≤ 500024
Total length of all junction candidates (factor times the reference genome length)≤ 0.10.002

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.85101

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 input16:06:16 02 Jan 201716:06:47 02 Jan 201731 seconds
Read alignment to reference genome16:06:47 02 Jan 201716:11:27 02 Jan 20174 minutes 40 seconds
Preprocessing alignments for candidate junction identification16:11:27 02 Jan 201716:12:15 02 Jan 201748 seconds
Preliminary analysis of coverage distribution16:12:15 02 Jan 201716:13:35 02 Jan 20171 minute 20 seconds
Identifying junction candidates16:13:35 02 Jan 201716:13:36 02 Jan 20171 second
Re-alignment to junction candidates16:13:36 02 Jan 201716:14:29 02 Jan 201753 seconds
Resolving alignments with junction candidates16:14:29 02 Jan 201716:15:49 02 Jan 20171 minute 20 seconds
Creating BAM files16:15:49 02 Jan 201716:16:53 02 Jan 20171 minute 4 seconds
Tabulating error counts16:16:53 02 Jan 201716:18:08 02 Jan 20171 minute 15 seconds
Re-calibrating base error rates16:18:08 02 Jan 201716:18:08 02 Jan 20170 seconds
Examining read alignment evidence16:18:08 02 Jan 201716:27:59 02 Jan 20179 minutes 51 seconds
Polymorphism statistics16:27:59 02 Jan 201716:28:00 02 Jan 20171 second
Output16:28:00 02 Jan 201716:28:15 02 Jan 201715 seconds
Total 21 minutes 59 seconds