UCSC Genome Bioinformatics
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Genome Browser
Table Browser
Gene Sorter
In Silico PCR
Genome Graphs
Release Log
Custom Tracks
Cancer Browser
Microbial Genomes
Cite Us
Contact Us

  About the UCSC Genome Bioinformatics Site

Welcome to the UCSC Genome Browser website. This site contains the reference sequence and working draft assemblies for a large collection of genomes. It also provides portals to ENCODE data at UCSC (2003 to 2012) and to the Neandertal project. You may download or purchase the Genome Browser source code, or the Genome Browser in a Box (GBiB) at our online store.

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WARNING: This is a test server. Data and tools on this website are under construction, have not been reviewed for quality, and are subject to change at any time. For high-quality, reviewed annotations on our production server, visit http://genome.ucsc.edu.

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WARNING: This is our preview site. This website is a weekly mirror of our internal development server for public access. Data and tools on this site are under Construction, have not been reviewed for quality, and are subject to change at any time. We provide this site for early access, with the warning that it is less available and stable than our public site. For high-quality, reviewed annotations on our production server, visit http://genome.ucsc.edu.

We encourage you to explore these sequences with our tools. The Genome Browser zooms and scrolls over chromosomes, showing the work of annotators worldwide. The Gene Sorter shows expression, homology and other information on groups of genes that can be related in many ways. Blat quickly maps your sequence to the genome. The Table Browser provides convenient access to the underlying database. VisiGene lets you browse through a large collection of in situ mouse and frog images to examine expression patterns. Genome Graphs allows you to upload and display genome-wide data sets.

The UCSC Genome Browser is developed and maintained by the Genome Bioinformatics Group, a cross-departmental team within the UC Santa Cruz Genomics Institute at the University of California Santa Cruz (UCSC). If you have feedback or questions concerning the tools or data on this website, feel free to contact us on our public mailing list. The Genome Browser is for research use only. Not intended for clinical use.

The Genome Browser project team relies on public funding to support our work. Donations are welcome -- we have many more ideas than our funding supports! If you have ideas, drop a comment in our suggestion box. Give to the UCSC Genome Browser

  NewsFollow @GenomeBrowser on Twitter Genome Browser Facebook page

To receive announcements of new genome assembly releases, new software features, updates and training seminars by email, subscribe to the genome-announce mailing list. Please see our blog for posts about Genome Browser tools, features, projects and more.

10 May 2016 - New Gateway Page!

The UCSC Genome Browser team is proud to announce a newly redesigned Genome Browser Gateway page. The Gateway retains its original functionality as a central access point for all genome assemblies available on our site, while sporting several helpful new features and updates:

  • Autocomplete searching for any genome browser, genome version, or public hub
  • Species browsing through a scrollable visual "tree" menu based on phylogenetic order
  • Quick access shortcuts to popular browsers
  • New style and color scheme

Please see our Gateway video for an introduction to these new features.

The new Gateway addresses the need for streamlined access to the rapidly growing number of genome assemblies available on our public site. As an alternative to scrolling through long drop-down menus of genome assemblies, you can now simply type in assembly search terms for autocomplete recognition, visually scroll through our collection, or click a button to access our most popular species.

Note that a few browser utilities that were previously accessed through links and buttons on the Gateway page have been moved to the top menu bar:

  • Browser reset: Genome Browser > Reset All User Settings
  • Track search: Genome Browser > Track Search
  • Add custom tracks: My Data > Custom Tracks
  • Track hubs: My Data > Track Hubs
  • Configure tracks and display: Genome Browser > Configure

We would like to acknowledge the following people for their contributions to the new Gateway: original art by Jeff West Design, concept by Robert Kuhn, software design by Angie Hinrichs, and quality assurance by Cath Tyner.

22 Apr 2016 - Data from the Lens PatSeq Database Now Available: We are pleased to announce the release of a set of tracks containing data from the Lens PatSeq database in the UCSC Genome Browser. Read more.

19 April 2016 - New Genotyping Tissue Expression Track for hg19 and hg38!: We are excited to announce the release of a new track based on data from the Genotyping Tissue Expression Consortium V6 data freeze. Read more.

  Conditions of Use

The Genome Browser software, sequence and annotation data are freely available for use with these conditions. A license is required for commercial use of the software. For assistance with questions or problems regarding the UCSC Genome Browser software, database, genome assemblies, or release cycles, click here.

Program-driven use of this software is limited to a maximum of one hit every 15 seconds and no more than 5,000 hits per day.

The UCSC Genome Browser was created by the Genome Bioinformatics Group of UC Santa Cruz. Software Copyright (c) The Regents of the University of California. All rights reserved.