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. 2013 Jul;41(Web Server issue):W601-6.
doi: 10.1093/nar/gkt392. Epub 2013 May 13.

A new reference implementation of the PSICQUIC web service

Affiliations

A new reference implementation of the PSICQUIC web service

Noemi del-Toro et al. Nucleic Acids Res. 2013 Jul.

Abstract

The Proteomics Standard Initiative Common QUery InterfaCe (PSICQUIC) specification was created by the Human Proteome Organization Proteomics Standards Initiative (HUPO-PSI) to enable computational access to molecular-interaction data resources by means of a standard Web Service and query language. Currently providing >150 million binary interaction evidences from 28 servers globally, the PSICQUIC interface allows the concurrent search of multiple molecular-interaction information resources using a single query. Here, we present an extension of the PSICQUIC specification (version 1.3), which has been released to be compliant with the enhanced standards in molecular interactions. The new release also includes a new reference implementation of the PSICQUIC server available to the data providers. It offers augmented web service capabilities and improves the user experience. PSICQUIC has been running for almost 5 years, with a user base growing from only 4 data providers to 28 (April 2013) allowing access to 151 310 109 binary interactions. The power of this web service is shown in PSICQUIC View web application, an example of how to simultaneously query, browse and download results from the different PSICQUIC servers. This application is free and open to all users with no login requirement (http://www.ebi.ac.uk/Tools/webservices/psicquic/view/main.xhtml).

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Figures

Figure 1.
Figure 1.
Structure of the URL to fetch data from PSICQUIC service.
Figure 2.
Figure 2.
Dataflow followed by the reference implementation from its origin in the molecular-interaction databases to the end user through PSICQUIC.
Figure
3.
Figure 3.
PSICQUIC View is a client for PSICQUIC services in which by formulating only one query fetches all the relevant molecular interactions available in the registered services. After the search, the user can choose from studying the results in more detail, viewing the interaction network, downloading or clustering the results.
Figure 4.
Figure 4.
Structure of the URL to fetch data from PSICQUIC registry.

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