Labstep is pleased to be part of the Resource Identification Initiative, a project aimed at clearly identifying the key resources used in the course of scientific research. This project helps address concerns of reproducibility by providing unique searchable identifiers, Research Resource Identifiers (RRIDs), for critical reagents and tools. RRIDs can be used to link readers to external resources, and they also enable search engines to return all papers in which a particular antibody, organism, or tool was used. We see these as important steps toward ensuring reproducible methods and providing critical data to help researchers identify suitable reagents and tools, and we are now asking Labstep authors to add RRIDs to their resources before they reference them in protocols.

How to Find an RRID

You should be able to find resources with an RRID in "Discover Resources" in Labstep. If you are still struggling to find what you're looking for visit and enter your search term(s) there.

  • Search tip for antibodies: you can narrow your search by including the vendor name and/or catalog number.
  • Search tip for organisms: you can include PubMed IDs (PMIDs) in your search or filter your search results by PMID, species, phenotype, and other criteria.

How to Request an RRID

When you cannot find an RRID for a model organism or antibody that you used, you can help this initiative by submitting the reagent, as detailed below, so that it can be given proper identifiers for future use. The Resource Identification Portal includes mouse, zebrafish, worm, fruit fly, and rat model organisms as well as many commercial antibodies and some lab-sourced ones. When you cannot find an RRID for one of these five model organisms, please see the instructions at for submitting a new organism to the relevant model organism database. Antibodies can be added via the Antibody Registry (; please note that login is required on that site. 

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