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-8-91-4-1_S7_L001_R2_0011,116,787324,047,672100.0%290.2 bases301 bases83.7%
errorsSSW-KHP-SSW-8-91-4-1_S7_L001_R1_0011,117,105320,543,648100.0%286.9 bases301 bases96.2%
total2,233,892644,591,320100.0%288.6 bases301 bases89.9%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,652122.92.4100.0%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≤ 10000013146
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 ≤ 500068
Total length of all junction candidates (factor times the reference genome length)≤ 0.10.009

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.85228

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 input04:02:23 17 Mar 201604:03:34 17 Mar 20161 minute 11 seconds
Read alignment to reference genome04:03:34 17 Mar 201604:09:34 17 Mar 20166 minutes 0 seconds
Preprocessing alignments for candidate junction identification04:09:34 17 Mar 201604:10:42 17 Mar 20161 minute 8 seconds
Preliminary analysis of coverage distribution04:10:42 17 Mar 201604:13:55 17 Mar 20163 minutes 13 seconds
Identifying junction candidates04:13:55 17 Mar 201604:13:58 17 Mar 20163 seconds
Re-alignment to junction candidates04:13:58 17 Mar 201604:14:28 17 Mar 201630 seconds
Resolving alignments with junction candidates04:14:28 17 Mar 201604:17:20 17 Mar 20162 minutes 52 seconds
Creating BAM files04:17:20 17 Mar 201604:19:16 17 Mar 20161 minute 56 seconds
Tabulating error counts04:19:16 17 Mar 201604:22:28 17 Mar 20163 minutes 12 seconds
Re-calibrating base error rates04:22:28 17 Mar 201604:22:29 17 Mar 20161 second
Examining read alignment evidence04:22:29 17 Mar 201604:46:19 17 Mar 201623 minutes 50 seconds
Polymorphism statistics04:46:19 17 Mar 201604:46:19 17 Mar 20160 seconds
Output04:46:19 17 Mar 201604:46:57 17 Mar 201638 seconds
Total 44 minutes 34 seconds