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  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.

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 and the Center for Biomolecular Science and Engineering (CBSE) 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 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.

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  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.


04 September 2014 - New ENCODE portal launched at www.encodeproject.org

The website for up-to-date information about the ENCODE project is no longer hosted at genome.ucsc.edu/ENCODE. Those UCSC ENCODE pages now archive information and tools from the ENCODE production and pilot phases (2003 to 2012) including live links to visualize and download data. Please navigate to the new ENCODE portal for recent data releases. Along with the ability to use faceted searching to explore all ENCODE data, the ENCODE portal provides visualization in the UCSC Genome Browser via a "Visualize Data" link on assay pages when processed data files are available.


03 September 2014 - Data from the FaceBase Consortium Now Available in the Genome Browser

We are pleased to announce that much of the data from the FaceBase Consortium is now available in the UCSC Genome Browser as a public track hub. This track hub contains data from numerous experiments carried out by the Potter and Visel labs to study craniofacial development in mice and humans, with tracks for the mm9, mm10, hg18, and hg19 assemblies. You can check out the hub on the mm9 assembly here. In addition to this public track hub, we have a set of microarray expression data hosted as a native track for both the mm9 and mm10 assemblies. This expression data compares expression across the mouse genome for a number of embryonic days and craniofacial cell types. For more information on this track, please see the track description page.

We would like to thank Robert Kuhn, Pauline Fujita, and Matthew Speir from UCSC and Thomas Maher from the FaceBase Consortium for their efforts in bringing these resources to the UCSC Genome Browser.


30 July 2014 - New Rat (rn6) Assembly Now Available in the Genome Browser: We are excited to announce the release of a Genome Browser for the July 2014 assembly of rat, Rattus norvegicus (RGSC Rnor_6.0, UCSC version rn6). Read more.

15 July 2014 - New Shrew (sorAra2) Assembly Now Available in the Genome Browser: We are pleased to announce the release of a Genome Browser for the August 2008 assembly of shrew, Sorex araneus (Broad SorAra2.0, UCSC version sorAra2). 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.