- Karolchik, Donna;
- Barber, Galt P;
- Casper, Jonathan;
- Clawson, Hiram;
- Cline, Melissa S;
- Diekhans, Mark;
- Dreszer, Timothy R;
- Fujita, Pauline A;
- Guruvadoo, Luvina;
- Haeussler, Maximilian;
- Harte, Rachel A;
- Heitner, Steve;
- Hinrichs, Angie S;
- Learned, Katrina;
- Lee, Brian T;
- Li, Chin H;
- Raney, Brian J;
- Rhead, Brooke;
- Rosenbloom, Kate R;
- Sloan, Cricket A;
- Speir, Matthew L;
- Zweig, Ann S;
- Haussler, David;
- Kuhn, Robert M;
- Kent, W James
The University of California Santa Cruz (UCSC) Genome Browser (http://genome.ucsc.edu) offers online public access to a growing database of genomic sequence and annotations for a large collection of organisms, primarily vertebrates, with an emphasis on the human and mouse genomes. The Browser's web-based tools provide an integrated environment for visualizing, comparing, analysing and sharing both publicly available and user-generated genomic data sets. As of September 2013, the database contained genomic sequence and a basic set of annotation 'tracks' for ∼90 organisms. Significant new annotations include a 60-species multiple alignment conservation track on the mouse, updated UCSC Genes tracks for human and mouse, and several new sets of variation and ENCODE data. New software tools include a Variant Annotation Integrator that returns predicted functional effects of a set of variants uploaded as a custom track, an extension to UCSC Genes that displays haplotype alleles for protein-coding genes and an expansion of data hubs that includes the capability to display remotely hosted user-provided assembly sequence in addition to annotation data. To improve European access, we have added a Genome Browser mirror (http://genome-euro.ucsc.edu) hosted at Bielefeld University in Germany.