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-BUT1-2_S1_L001_R2_001954,048143,519,143100.0%150.4 bases151 bases98.9%
errorsqtrim-BUT1-2_S1_L001_R1_001954,160143,611,932100.0%150.5 bases151 bases99.8%
total1,908,208287,131,075100.0%150.5 bases151 bases99.4%

Reference Sequence Information

seq idlengthfit meanfit dispersion% mapped readsdescription
coveragedistributionNC_0009134,641,65261.51.298.3%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≤ 1000001156
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 ≤ 500022
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_0009130.82233

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 input13:20:20 02 Jan 201713:20:54 02 Jan 201734 seconds
Read alignment to reference genome13:20:55 02 Jan 201713:26:06 02 Jan 20175 minutes 11 seconds
Preprocessing alignments for candidate junction identification13:26:06 02 Jan 201713:27:06 02 Jan 20171 minute 0 seconds
Preliminary analysis of coverage distribution13:27:06 02 Jan 201713:28:46 02 Jan 20171 minute 40 seconds
Identifying junction candidates13:28:46 02 Jan 201713:28:46 02 Jan 20170 seconds
Re-alignment to junction candidates13:28:46 02 Jan 201713:29:51 02 Jan 20171 minute 5 seconds
Resolving alignments with junction candidates13:29:51 02 Jan 201713:31:31 02 Jan 20171 minute 40 seconds
Creating BAM files13:31:31 02 Jan 201713:32:46 02 Jan 20171 minute 15 seconds
Tabulating error counts13:32:46 02 Jan 201713:34:19 02 Jan 20171 minute 33 seconds
Re-calibrating base error rates13:34:19 02 Jan 201713:34:20 02 Jan 20171 second
Examining read alignment evidence13:34:20 02 Jan 201713:47:40 02 Jan 201713 minutes 20 seconds
Polymorphism statistics13:47:40 02 Jan 201713:47:40 02 Jan 20170 seconds
Output13:47:40 02 Jan 201713:48:00 02 Jan 201720 seconds
Total 27 minutes 39 seconds