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Help Home > Overview


The JGI Genome Portal presents JGI-sequenced genomes through a variety of bioinformatics tools for search, visualization, and analysis. This page serves as jumping off point for Help, linking you to

  1. The Help Table of Contents
  2. A description of the Organization and primary elements of the site.
  3. A description of the Tools available within each Organism Portal.

Quick Tips

Be sure to Register and log in!

  • When you log in to the JGI, the Genome Portal will be automatically customized to provide annotation access to the organisms you are registered to work on.
  • Once you are logged in from anywhere within the JGI web site, you will remain logged in everywhere and your privileges for each genome portal will be loaded automatically.
  • Without logging in, you will be able to view and use analysis tools for most JGI genomes, but may not see some early release genomes and will not be able to annotate.

The Genome/Tool selection menu

Use the Genome/Tool Selector to navigate to the Organism Portal and tool of your choice.

2. Organization of the Genome Portal

The primary elements of the JGI Genome Portal are listed below:

1. The Portal Front Page. The Front page is the navigational hub of the portal, from which you select the organism portal and tools you would like to work with.

2. Organism Portals: Each genome sequenced at the JGI can be accessed through its organism portal. The organism portal provides access to sequence data as well as to the set of tools available for use with this organism, such as search, BLAST alignment, functional annotation (GO, KEGG, KOG), and the Genome Browser. In Portal 6.0, we have also introduced organism "Group" portals, which provide search, BLAST, and download tools for groups of related genomes.

3. The Genome Browser: The Genome Browser is the primary visualization and navigation tool for exploring genome data and annotations.

4. Protein pages: Each gene model described within JGI genomes is associated with a web page that serves as the locus of information for this model, including it's sequence, functional annotation, predicted domains, and known homologs. Analogous pages also exist for ESTs, repeats, and alignments.

5. Integration with other JGI resources: The portal is connected in a variety of ways to other JGI resources such as the JGI Program Sites, IMG, VISTA, and Phytozome. For instance (as is shown in the diagram below) fungal organism portals can be reached directly from the Mycocosm fungal program site.

Primary elements of the JGI Genome Portal

These resources are interconnected in many ways, illustrated in the above figure, showing the navigational flows among tools in the Genome Portal. For instance, a Protein page for a particular gene model can be reached (among many other ways):

  • By clicking on the model within its track on the Genome Browser and selecting "Feature Web page."
  • By clicking an Advanced search result for this model
  • By clicking on the alignment to it in another protein page.
  • By clicking on the model from within the GO browser.

Similarly, the Genome Browser can be reached by selecting this tool in the organism portal header tab, by clicking on "Location" within a protein page, or by clicking on "G" for a hit within Advanced Search.

3. Tools available from within Organism Portals

For each Organism Portal, a list of tools available for this Genome is listed in a tab bar across the top of the organism page. These tools are described below. Not all tools are available for all organisms. For instance eukaryotic genomes generally have a different set of tools available for use than do prokaryotic organism portals.


The "simple" Search tool allows you to search for InterPro domain predictions or Smith-Waterman alignments to one or more JGI-predicted genes (gene models). You can also jump to a specific JGI gene model.

Advanced Search

The Advanced Search/Annotation tool provides powerful search features such as wildcard searches, searches against homologous proteins, and iterative searches. The tool also provides links to the Genome Browser and Protein page views of results and to the locus and transcript annotation areas.

Alignment Search (BLAST and other programs)

The BLAST tool provides an interface to NCBI's Basic Local Alignment Search Tool, BLAT and other alignment search programs for queries against JGI genomes.

The Genome Browser

JGI's Genome Browser lets you browse through JGI-predicted genes, view sequences, and study detailed alignments with nucleotide and amino acid sequences from relevant sequence databases.

The GO Browser

The Gene Ontology tool uses the Gene Ontology Consortium's controlled vocabulary for organisms to present information about JGI-predicted genes that have automatically assigned GO terms.

The KEGG Browser

The KEGG tool uses the Kyoto Encyclopedia of Genes and Genomes and its hierarchies of metabolic and regulatory pathways to present information about JGI-predicted genes that have automatically assigned KEGG terms.

The KOG Browser

The KOG tool uses euKaryotic Orthologous Groups from NCBI, a classification system based on orthologous relationships between genes in eukaryotes, to present information about JGI-predicted genes that have automatically assigned KOG identification numbers.


The Clustering tool allows you to investigate gene-family clusters. Clusters are pre-computed using an MCL-based algorithm performed on a set of protein sequences generated from BLAST and filtered using a spare dynamic programming approach.


The VISTA synteny application provides you with three different visualization tools for examining whole-genome DNA alignments.

The Download Area

The Download feature allows you to download any available data related to a given organism including assembled genomes, gene models, predicted protein files, ESTs, and transcripts.