breseq  version 0.26.0  
mutation predictions | marginal predictions | summary statistics | genome diff | command line log

Read File Information

read filereadsbasespassed filtersaveragelongestmapped
errors2Glu_S3_L001_R2_001959,824273,909,494100.0%285.4 bases301 bases76.2%
errors2Glu_S3_L001_R1_001959,856271,112,784100.0%282.5 bases301 bases95.6%
total1,919,680545,022,278100.0%283.9 bases301 bases85.9%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,652102.53.9100.0%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≤ 1000001990
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 ≤ 5000120
Total length of all junction candidates (factor times the reference genome length)≥ 0.10.016

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.89916

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≤ 0
Number of bases that at least one read must overlap each uniquely aligned side of a predicted junction≥ 6

Read Alignment Evidence

optionvalue
ModeFull Polymorphism
Ploidy1 (haploid)
Consensus mutation E-value cutoff10
Polymorphism E-value cutoff2
Polymorphism frequency cutoff0.05
Polymorphism minimum coverage each strand2
Polymorphism bias cutoff0.001
Predict indel polymorphismsYES
Skip indel polymorphisms in homopolymers runs of ≥3 bases
Skip base substitutions when they create a homopolymer flanked on each side by ≥2 bases

Execution Times

stepstartendelapsed
Read and reference sequence file input02:13:33 16 Apr 201502:14:17 16 Apr 201544 seconds
Read alignment to reference genome02:14:18 16 Apr 201502:19:46 16 Apr 20155 minutes 28 seconds
Preprocessing alignments for candidate junction identification02:19:46 16 Apr 201502:20:41 16 Apr 201555 seconds
Preliminary analysis of coverage distribution02:20:41 16 Apr 201502:23:25 16 Apr 20152 minutes 44 seconds
Identifying junction candidates02:23:25 16 Apr 201502:23:26 16 Apr 20151 second
Re-alignment to junction candidates02:23:26 16 Apr 201502:23:51 16 Apr 201525 seconds
Resolving alignments with junction candidates02:23:51 16 Apr 201502:25:15 16 Apr 20151 minute 24 seconds
Creating BAM files02:25:15 16 Apr 201502:26:56 16 Apr 20151 minute 41 seconds
Tabulating error counts02:26:56 16 Apr 201502:29:31 16 Apr 20152 minutes 35 seconds
Re-calibrating base error rates02:29:31 16 Apr 201502:29:32 16 Apr 20151 second
Examining read alignment evidence02:29:32 16 Apr 201504:33:31 16 Apr 20152 hours 3 minutes 59 seconds
Polymorphism statistics04:33:31 16 Apr 201504:33:32 16 Apr 20151 second
Output04:33:32 16 Apr 201504:34:15 16 Apr 201543 seconds
Total 2 hours 20 minutes 41 seconds