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-4-165-1-1_S18_L001_R2_001472,691141,936,60499.9%300.3 bases301 bases76.0%
errorsSSW-KHP-SSW-4-165-1-1_S18_L001_R1_001473,302142,253,498100.0%300.6 bases301 bases78.3%
total945,993284,190,10299.9%300.4 bases301 bases77.1%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,65246.91.9100.0%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≤ 1000003604
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 ≤ 5000429
Total length of all junction candidates (factor times the reference genome length)≤ 0.10.056

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.93906

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 input14:37:32 05 Mar 201614:38:03 05 Mar 201631 seconds
Read alignment to reference genome14:38:04 05 Mar 201614:40:37 05 Mar 20162 minutes 33 seconds
Preprocessing alignments for candidate junction identification14:40:37 05 Mar 201614:41:05 05 Mar 201628 seconds
Preliminary analysis of coverage distribution14:41:05 05 Mar 201614:42:10 05 Mar 20161 minute 5 seconds
Identifying junction candidates14:42:10 05 Mar 201614:42:11 05 Mar 20161 second
Re-alignment to junction candidates14:42:11 05 Mar 201614:42:30 05 Mar 201619 seconds
Resolving alignments with junction candidates14:42:30 05 Mar 201614:43:29 05 Mar 201659 seconds
Creating BAM files14:43:29 05 Mar 201614:44:04 05 Mar 201635 seconds
Tabulating error counts14:44:04 05 Mar 201614:45:17 05 Mar 20161 minute 13 seconds
Re-calibrating base error rates14:45:17 05 Mar 201614:45:18 05 Mar 20161 second
Examining read alignment evidence14:45:18 05 Mar 201614:54:26 05 Mar 20169 minutes 8 seconds
Polymorphism statistics14:54:26 05 Mar 201614:54:26 05 Mar 20160 seconds
Output14:54:26 05 Mar 201614:54:48 05 Mar 201622 seconds
Total 17 minutes 15 seconds