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-BUT3-6_S6_L001_R2_001968,175145,672,812100.0%150.5 bases151 bases99.2%
errorsqtrim-BUT3-6_S6_L001_R1_001968,281145,748,880100.0%150.5 bases151 bases99.8%
total1,936,456291,421,692100.0%150.5 bases151 bases99.5%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,65262.61.298.3%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≤ 1000001805
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 ≤ 500016
Total length of all junction candidates (factor times the reference genome length)≤ 0.10.001

Junction Skew Score Calculation

reference sequencepr(no read start)
NC_0009130.81970

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 input14:17:46 02 Jan 201714:18:27 02 Jan 201741 seconds
Read alignment to reference genome14:18:27 02 Jan 201714:24:26 02 Jan 20175 minutes 59 seconds
Preprocessing alignments for candidate junction identification14:24:26 02 Jan 201714:25:39 02 Jan 20171 minute 13 seconds
Preliminary analysis of coverage distribution14:25:39 02 Jan 201714:27:28 02 Jan 20171 minute 49 seconds
Identifying junction candidates14:27:28 02 Jan 201714:27:28 02 Jan 20170 seconds
Re-alignment to junction candidates14:27:28 02 Jan 201714:28:46 02 Jan 20171 minute 18 seconds
Resolving alignments with junction candidates14:28:46 02 Jan 201714:30:53 02 Jan 20172 minutes 7 seconds
Creating BAM files14:30:53 02 Jan 201714:32:15 02 Jan 20171 minute 22 seconds
Tabulating error counts14:32:15 02 Jan 201714:34:01 02 Jan 20171 minute 46 seconds
Re-calibrating base error rates14:34:01 02 Jan 201714:34:02 02 Jan 20171 second
Examining read alignment evidence14:34:02 02 Jan 201714:47:57 02 Jan 201713 minutes 55 seconds
Polymorphism statistics14:47:57 02 Jan 201714:47:57 02 Jan 20170 seconds
Output14:47:57 02 Jan 201714:48:14 02 Jan 201717 seconds
Total 30 minutes 28 seconds