TGAC Browser

Tgac browser

The TGAC Browser is a web-based genomics browser with novel rendering and annotation capabilities designed to overcome some of the shortcomings in available approaches.

TGAC specialises in a broad range of technologies, applications and projects, and as such, the requirements for using genome browsers over the resulting datasets are varied. It is often the case that bespoke browser customisations are required between different groups, with an obvious necessity to update, upgrade and tailor tracks and features on a potentially frequent basis.

Most of the popular current browsers use on-the-fly server-side rendering of tracks and features which are not efficient in terms of performance or scalability. In addition, these browsers often rely on very specific library dependencies, where writing plug-in or modifying existing code can be troublesome and resource expensive. The TGAC Browser focuses on functionality which in many cases is available in existing tools but with an improved and more productive user interface.


The TGAC Browser provides the following features:

  • Responsiveness: Client-side rendering and caching, based on JSON fragments generated by server logic, helps decrease the server load and improves user experience
  • User-friendly browser Interaction: Live data searching, track modification, and drag and drop selection; actions that are seamlessly powered by modern web browsers
  • In addition, other key features of the TGAC Browser include merging and removing tracks and exporting sequences in FASTA format
  • Analysis Integration: The ability to carry out heavyweight analysis tasks, using tools such as BLAST, via a dedicated extensible daemon service
  • User Annotation: Users can edit annotations which can be persisted on the server, reloaded, and shared at a later date
  • Off-the-shelf Installation: The only prerequisites are a web application container, such as Jetty or Tomcat, and a standard Ensembl database to host sequence features

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