Genome assembly search and request

What is the Genome Browser?

The UCSC Genome Browser provides a rapid and reliable display of any requested portion of any genome assembly at any scale, together with dozens of aligned annotation tracks (genes, mRNAs, CpG islands, regulation, variation, repeats, and more). The Genome Browser stacks annotation tracks beneath genome coordinate positions, allowing rapid visual correlation of different types of information. The user can look at a whole chromosome to get a feel for gene density, open a specific cytogenetic band to see a positionally mapped disease gene candidate, or zoom in to a particular gene to view its spliced ESTs and possible alternative splicing. The Genome Browser itself does not draw conclusions; rather, it collates all relevant information in one location, leaving the exploration and interpretation to the user. For more information on using the UCSC Genome Browser please see our help and training pages.

What is this page for?

This page lists both whole-genome assembly browsers that are available for immediate viewing, and assemblies that are not currently available but can be requested.

We are working on adding a search function to this page. To search this page: Click this to turn on all items for search. Use the "find" feature of your Browser (commonly CTRL+F).

After searching the page, if you do not find the assembly you are interested in, you may request it using the "Can't find your assembly?" button at the top of the page. Complete the request form (including the NCBI GenBank or RefSeq assembly accession identifier). You will be notified by email when your assembly is available for viewing in the UCSC Genome Browser. This can take up to three weeks. The assembly browser will include the following annotation tracks: Assembly mapping, Base position, Gaps, GC Percent, Restriction Enzymes, Tandem Duplications, CpG Islands, RefSeq mRNAs, Repeat Masking, and, if available: NCBI RefSeq Genes and Ensembl Genes.

This page is optimized for use in Firefox and Safari.

For more details on using this page, please see this blog post.