We know that installing the VEP is not always trivial – there are dependencies and modules that you may or may not have already, and your existing setup may require different module versions. It’s also designed for a Linux system and installing on, for example, Windows, can be complex. To get around this, the VEP and all its dependencies are available in a Docker image, so that you can install everything with just a few simple commands.

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Plugins can be an excellent way to extend the functionality of the VEP. They can be used to look-up information in external databases or use the Ensembl API to add to or filter your VEP output. Many plugins have already been written, both by us and external groups, but with a bit of Perl you can easily write your own.

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The interpretation of non-coding variants is more challenging than that of coding variants as less prediction methods and reference data are available. On top of the annotation provided for human and mouse in the Ensembl Regulatory Build, the Ensembl Variant Effect Predictor (VEP) also integrates two other human-specific datasets providing information about how variants can affect gene expression. The plugins, satMutMPRA and FunMotifs, are available for use with command-line VEP. One provides detailed information on the impact on expression of variants in the regulatory regions of disease-associated genes; the other an alternative set of genome-wide transcription factor binding motifs.

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If you’re really delving into the role of a particular genetic variant, you might want to know about that base position in other species. VEP can get you ancestral alleles in human and conservation scores in many species for a variant position allowing you to assess if a position is evolutionarily important, or if an allele matches our primate ancestors.

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