UCSC Genome Bioinformatics
Genome Browser
Table Browser
Gene Sorter
In Silico PCR
Genome Graphs
Release Log
Custom Tracks
Cancer Browser
Microbial Genomes
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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. Download or purchase the Genome Browser source code, or the Genome Browser in a Box (GBiB) at our online store.

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 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.

25 November 2015 — New "View - In External Tools" Menu Sends Data to Prediction Websites!

Do you often get the current sequence with "View - DNA" just to copy and paste it into another website? With the new menu "View - In External Tools" you can now send the current region to remote tools with two clicks.

For example, when browsing hg38 and zoomed in on the start of a gene like ABO at chr9:133,255,000-133,255,555, click the View menu and select "In External Tools", or simply type the keyboard shortcut "s" then "t", to send the region to a list of different prediction tools.

Some of the available tools (not available for all assemblies or all zoom levels) are primer design and restriction enzyme predictions (Primer3Plus, Primer-BLAST, NEBCutter), mRNA and protein predictions (RegRNA 2, Riboswitches, RNAfold, PFAM), cis-regulatory predictions (Promoter 2, RSAT Metazoa), and CRISPR/Cas9 predictions (CRISPOR, CHOPCHOP), as well as links to view the region at NCBI or Ensembl. You can suggest other tools via our Suggestion Box.

Credit goes to Max Haeussler for implementing this new feature.

3 November 2015 — New quick links for the Genome Browser's top menu bar : The "Genomes" menu now features direct links to jump to browsing the human (hg38 and hg19) and mouse (mm10 and mm9) assemblies! Read more.

23 September 2015 — New keyboard shortcuts on the Genome Browser : It's now possible to zoom in and out, navigate left and right, hide all tracks, configure the browser display and much more using only your keyboard. Use the "?" key to view the entire list of shortcuts. Read more.

14 September 2015 — Human Genome Browser default changed to GRCh38/hg38 : In conjunction with the release of the new 100-species Conservation track on the hg38/GRCh38 human assembly, we have changed the default human browser on our website from hg19 to hg38. Read more.

10 September 2015 — 100 Species Conservation Track now available on GRCh38/hg38 : We are pleased to announce the release of a new Conservation track based on the human (GRCh38/hg38) assembly. 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.