EPI2ME Labs maintains a collection of Nextflow bioinformatics workflows tailored to Oxford Nanopore Technologies long-read sequencing data. They are curated and actively maintained by experts in long-read sequence analysis.

Getting Started - Installation

We are excited to offer our bioinformatics solutions using the Nextflow reactive workflow framework. Nextflow has been selected as a preferred framework because of its integration with container technologies, software package managers and its scalability to cluster- and cloud-scale installations. Nextflow also has growing user adoption through projects such as nf-core. These advantages will help us deliver varied workflows with minimal requirements for the installation of additional software.

See the Workflows Quickstart page for a walkthrough to guide installation of the pre-requisites for using our workflows in your computing environment.

Available workflows

Below you will find a complete list of available workflows with a short description of each. Each description is accompanied by a link to the Github repository hosting the workflow and a sample workflow report.

For more information on running workflows see our Workflow Quick Start Guide.

Basic Tasks

• wf-alignment packages the minimap2 software and streamlines the process of mapping sequence reads to a reference genome and preparing summary statistics. It can also analyse the abundance of known molarity control experiments and use this information to derive the abundances of other species present in the sample. (Sample report)
• wf-demultiplex packages the standard Oxford Nanopore Technologies read demultiplexing software. Other workflows include this step such that this workflow is not typically required to be run in isolation; it is supplied however supplied standalone for users that require it. (Sample report)

Variant Calling

• wf-hap-snps: a workflow for running small variant calling and annotation in haploid samples. (Sample report)

Assembly

• wf-clone-validation: assembly of small plasmid sequences, for verifying the results of molecular cloning experiments. (Sample report)

Metagenomics

• wf-metagenomics includes the Centrifuge software and appropriate indexes to facilitate the taxonomic classification of sequence reads from metagenome samples. (Sample report)

Miscellaneous

• wf-artic: a nextflow workflow for running the ARTIC SARS-CoV-2 workflow on multiplexed MinION, GridION, and PromethION runs. (Sample report)