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Welcome to WikiPathways BETA

In the “tradition” of Wikipedia and other wiki platforms, WikiPathways is intended to be an open, public space for content editing dedicated to biological pathways, facilitating the contribution and maintenance of pathway information from the scientific community.

How To Find a Pathway

There are many ways to find your pathways of interest. You can search by:
  • Name of the pathway
  • Browse by species
  • Browse by pathway categories
  • Search by gene name (google search)

Viewing Pathways

Once you are on a Pathway Page you can click on the image of the pathway to view the SVG representation. The pathway image is available for download in SVG and PNG formats.
Each Pathway Page has a text description, itemized gene list, references and relevant links.
Each pathway is also available for download as a GPML data file (GenMAPP Pathway Markup Language), an XML for annotated, curated pathway content. This format can be used with PathVisio.

Editing Pathways

In addition to editing the text fields on a given Pathway Page, this wiki also support the ability to edit the pathway itself! Click on "EDIT" and a webstart version of PathVisio will open with the current pathway loaded. You can then add, edit or delete content from the pathway. When you save, updated version of the images, controlled text, and data files are generated and are immediately available.
Try it out in the Sandbox pathway!
Also see the Help pages


This site is undergoing rigorous beta testing. We are still implementing critical features and making major changes to these pages. Nevertheless, feel free to use the site to find, edit and create pathway content.

If you have any questions or suggestions, you can post them to the WikiPathways-Users Google Group, or email them directly to us:

Thomas Kelder: Thomas.Kelder[AT]
Alex Pico: apico[AT]

Also see the PathVisio bug tracker for WikiPathways and PathVisio related bugs.

Today's featured pathway

Unable to get pathway of the day: FeaturedPathways doesn't contain any valid pathway!


  • Browse pathways in WikiPathways by cross-referencing species and categories!
  • New pathway editor embedded into every Pathway page. Edit pathways without opening an external editor!
  • Batch download page: download all pathways as an archive of image or data files with a single click!

Coming Soon...

  • Additional Species:
    • Fruit Fly
    • Zebrafish
    • C.elegans
    • Yeast
  • Visual comparison of different pathway versions


Overview of all human pathways

Overview of all mouse pathways

Overview of all rat pathways

Cellular Process category

Metabolic Process category

Physiological Process category

Molecular Function category


  • There are 2892 pathways
  • Number of pathways (and unique genes) per species:
Acetobacterium woodii: 1 (0)
Anopheles gambiae: 21 (428)
Arabidopsis thaliana: 92 (956)
Bacillus subtilis: 3 (14)
Beta vulgaris: 1 (25)
Bos taurus: 274 (3743)
Caenorhabditis elegans: 66 (882)
Canis familiaris: 112 (2820)
Danio rerio: 105 (2708)
Drosophila melanogaster: 35 (565)
Escherichia coli: 12 (28)
Equus caballus: 12 (200)
Gallus gallus: 100 (2106)
Glycine max: 1 (2)
Gibberella zeae: 2 (0)
Homo sapiens: 1235 (8626)
Hordeum vulgare: 1 (9)
Mus musculus: 229 (4985)
Mycobacterium tuberculosis: 16 (132)
Oryza sativa: 68 (535)
Pan troglodytes: 115 (2910)
Populus trichocarpa: 5 (0)
Rattus norvegicus: 173 (3623)
Saccharomyces cerevisiae: 135 (856)
Solanum lycopersicum: 7 (5)
Sus scrofa: 9 (65)
Vitis vinifera: 1 (0)
Zea mays: 58 (31)
Plasmodium falciparum: 1 (0)
Brassica napus: 2 (162)
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