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DESeq - differential gene expression analysis
Differential gene expression analysis ===================================== Differential gene expression analysis based on the negative binomial distribution Estimate variance-mean dependence in count data from high-throughput sequencing assays and test for differential expression based on a model using the negative binomial distribution. DESeq1 ------ High-throughput sequencing assays such as RNA-Seq, ChIP-Seq or barcode counting provide quantitative readouts in the form of count data. To infer differential signal in such data correctly and with good statistical power, estimation of data variability throughout the dynamic range and a suitable error model are required. Simon Anders and Wolfgang Huber propose a method based on the negative binomial distribution, with variance and mean linked by local regression and present an implementation, [DESeq](http://bioconductor.org/packages/release/bioc/html/DESeq.html), as an R/Bioconductor package DESeq2 ------ In comparative high-throughput sequencing assays, a fundamental task is the analysis of count data, such as read counts per gene in RNA-seq, for evidence of systematic changes across experimental conditions. Small replicate numbers, discreteness, large dynamic range and the presence of outliers require a suitable statistical approach. [DESeq2](http://www.bioconductor.org/packages/release/bioc/html/DESeq2.html), a method for differential analysis of count data, using shrinkage estimation for dispersions and fold changes to improve stability and interpretability of estimates. This enables a more quantitative analysis focused on the strength rather than the mere presence of differential expression. |
![]() Path: workflows/deseq.cwl Branch/Commit ID: bfa3843bcf36125ff258d6314f64b41336f06e6b |
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annotator_sub_wf.cwl
This is a subworkflow of the main oxog_varbam_annotat_wf workflow - this is not meant to be run as a stand-alone workflow! |
![]() Path: annotator_sub_wf.cwl Branch/Commit ID: 40bf56daf9edab82e0f964dbd6961ca1111cd35f |
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samtools_view_sam2bam
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![]() Path: structuralvariants/cwl/abstract_operations/subworkflows/samtools_view_sam2bam.cwl Branch/Commit ID: de9cb009f8fe0c8d5a94db5c882cf21ddf372452 |
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prefetch_fastq.cwl
Worfklow combining an SRA fetch from NCBI with a fastq-dump cmd |
![]() Path: bio-cwl-tools/sratoolkit/prefetch_fastq.cwl Branch/Commit ID: 2f7764f063e198fd8601229105922f913ea89941 |
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scatter-wf3.cwl#main
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![]() Path: tests/scatter-wf3.cwl Branch/Commit ID: a0f2d38e37ff51721fdeaf993bb2ab474b17246b Packed ID: main |
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schemadef-wf.cwl
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![]() Path: cwltool/schemas/v1.0/v1.0/schemadef-wf.cwl Branch/Commit ID: 280a852e74aec08cf79687e8004e17b1ab464534 |
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Trim Galore RNA-Seq pipeline paired-end
The original [BioWardrobe's](https://biowardrobe.com) [PubMed ID:26248465](https://www.ncbi.nlm.nih.gov/pubmed/26248465) **RNA-Seq** basic analysis for a **pair-end** experiment. A corresponded input [FASTQ](http://maq.sourceforge.net/fastq.shtml) file has to be provided. Current workflow should be used only with the single-end RNA-Seq data. It performs the following steps: 1. Trim adapters from input FASTQ files 2. Use STAR to align reads from input FASTQ files according to the predefined reference indices; generate unsorted BAM file and alignment statistics file 3. Use fastx_quality_stats to analyze input FASTQ files and generate quality statistics files 4. Use samtools sort to generate coordinate sorted BAM(+BAI) file pair from the unsorted BAM file obtained on the step 1 (after running STAR) 5. Generate BigWig file on the base of sorted BAM file 6. Map input FASTQ files to predefined rRNA reference indices using Bowtie to define the level of rRNA contamination; export resulted statistics to file 7. Calculate isoform expression level for the sorted BAM file and GTF/TAB annotation file using GEEP reads-counting utility; export results to file |
![]() Path: workflows/trim-rnaseq-pe.cwl Branch/Commit ID: 104059e07a2964673e21d371763e33c0afeb2d03 |
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final-workflow.cwl
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![]() Path: final-workflow.cwl Branch/Commit ID: f7894707dd30a0edd199d3b67c4c8678f64c90b3 |
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bam-bedgraph-bigwig.cwl
Workflow converts input BAM file into bigWig and bedGraph files. Input BAM file should be sorted by coordinates (required by `bam_to_bedgraph` step). If `split` input is not provided use true by default. Default logic is implemented in `valueFrom` field of `split` input inside `bam_to_bedgraph` step to avoid possible bug in cwltool with setting default values for workflow inputs. `scale` has higher priority over the `mapped_reads_number`. The last one is used to calculate `-scale` parameter for `bedtools genomecov` (step `bam_to_bedgraph`) only in a case when input `scale` is not provided. All logic is implemented inside `bedtools-genomecov.cwl`. `bigwig_filename` defines the output name only for generated bigWig file. `bedgraph_filename` defines the output name for generated bedGraph file and can influence on generated bigWig filename in case when `bigwig_filename` is not provided. All workflow inputs and outputs don't have `format` field to avoid format incompatibility errors when workflow is used as subworkflow. |
![]() Path: tools/bam-bedgraph-bigwig.cwl Branch/Commit ID: dcf683418d101917852b1711a91af817d4ea5d03 |
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Add snv and indel bam-readcount files to a vcf
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![]() Path: definitions/subworkflows/vcf_readcount_annotator.cwl Branch/Commit ID: d57c2af01a3cb6016e5a264f60641eafd2e5aa05 |