INDRA DB Search Interface
On the landing page of the INDRA DB web interface, you can search for statements by agent name, statement type, MeSH term, or paper. By default, an unfilled agent search option is displayed. You can add additional search options by selecting one from the dropdown below the current list of search options. You can also remove a search option by clicking the “X” button next to it. Once you have entered your search criteria, click the “Search” button to retrieve the statements that match your search criteria.
Search Options
The search options are as follows:
Agent: search by a specific entity (gene, small molecule, biological process, etc.) The options are:
role:
subject: the agent is an upstream/controller in retrieved statements
object: the agent is downstream/controlled in retrieved statements
any: any role is allowed
text: Enter the name of the agent
namespace and Gilda grounding option: Typically it’s more reliable to query the DB using identifiers rather than informal names. If you know the identifier for e.g., a gene, say “HGNC:1234”, you enter ‘1234’ in the text box and then chose ‘hgnc’ in the namespace dropdown. However, if you only know the name, the Gilda grounding option is useful. If you enter e.g., “K-ras” and click “Ground with GILDA”, it will automatically find an identifier for it. If there is ambiguity, you can select the correct entity from a dropdown. Once you click “Search”, the DB will be queried using the ID selected from the dropdown.
Type: the type of statement e.g. Activation, Phosphorylation, DecreaseAmount, Complex, etc. Read more about the types of statements in the INDRA documentation.
MeSH: a Medical Subject Headings term that the papers retrieved as evidence are annotated with. This option also has the option to ground with Gilda if you only know the name of the MeSH term.
Paper: Limit the search to a specific publication that evidence comes from. To include multiple papers, select another paper search option from the dropdown. In the paper search option, you can search by these publication identifiers:
PMID: PubMed ID
PMCID: PubMed Central ID
DOI: Digital Object Identifier
TRID: Internal INDRA DB ID signifying a specific publication regardless of the external identifier (PMID, PMCID, DOI).
TCID: Internal INDRA DB ID signifying a piece of a text retrieved from a particular source.
Search Results
The search results are displayed in hierarchical list format. At the top level, the most generic form of interaction matching the search criteria are displayed. Clicking on one of the rows expands the next level of detail, showing the specific forms of interactions that match the search criteria. Clicking on one of these rows expands the next level of detail, showing the specific statements that match the search criteria. The nesting is at most three levels deep, but can also be less if e.g., there is only one statement type for one interaction type.

Search results view with three levels of nesting expanded for USP15 affecting BARD1
The search results allows you to curate evidence for each statement. To do this, click on the pencil icon next to the piece of evidence you want to curate. This will open a curation area where different options for curating the evidence are available. To read more about curation, see the curation tutorial in the INDRA documentation.