To circumvent these limitations, UCSC has introduced support for ‘track data hubs’, Internet-accessible collections of genome annotations that can be viewed on the UCSC Genome Browser alongside native annotation tracks (Dreszer et al., 2012). Track data hubs provide the power and flexibility to organize, configure and fully integrate one or more large datasets into the browser and allow efficient worldwide access to the data through the familiar Genome Browser interface. Individuals experienced in setting up Genome Browser mirrors will find that setting up a track data hub is much easier. Depending on the number and complexity of the datasets, a track data hub typically can be set up in a day or two.
