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-8-91-1-1_S4_L001_R2_001741,685213,034,118100.0%287.2 bases301 bases82.8%
errorsSSW-KHP-SSW-8-91-1-1_S4_L001_R1_001741,896210,117,367100.0%283.2 bases301 bases95.2%
total1,483,581423,151,485100.0%285.2 bases301 bases89.0%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,65279.72.3100.0%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≤ 10000014268
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 ≤ 500052
Total length of all junction candidates (factor times the reference genome length)≤ 0.10.007

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.89737

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 input00:40:35 17 Mar 201600:41:20 17 Mar 201645 seconds
Read alignment to reference genome00:41:21 17 Mar 201600:45:15 17 Mar 20163 minutes 54 seconds
Preprocessing alignments for candidate junction identification00:45:15 17 Mar 201600:46:02 17 Mar 201647 seconds
Preliminary analysis of coverage distribution00:46:02 17 Mar 201600:48:06 17 Mar 20162 minutes 4 seconds
Identifying junction candidates00:48:06 17 Mar 201600:48:09 17 Mar 20163 seconds
Re-alignment to junction candidates00:48:09 17 Mar 201600:48:28 17 Mar 201619 seconds
Resolving alignments with junction candidates00:48:28 17 Mar 201600:50:12 17 Mar 20161 minute 44 seconds
Creating BAM files00:50:12 17 Mar 201600:51:27 17 Mar 20161 minute 15 seconds
Tabulating error counts00:51:27 17 Mar 201600:53:32 17 Mar 20162 minutes 5 seconds
Re-calibrating base error rates00:53:32 17 Mar 201600:53:33 17 Mar 20161 second
Examining read alignment evidence00:53:33 17 Mar 201601:09:15 17 Mar 201615 minutes 42 seconds
Polymorphism statistics01:09:15 17 Mar 201601:09:15 17 Mar 20160 seconds
Output01:09:15 17 Mar 201601:09:41 17 Mar 201626 seconds
Total 29 minutes 5 seconds