Anjali Shrivastava, Luana Licata, M. Sivade, Colin W. Combe, Grace Bradley, K. Van Roey, Mais G. Ammari, Birgit H M Meldal, David J. Lynn, Pablo Porras, Nancy H. Campbell, Julie Sullivan, Sylvie Ricard-Blum, Noemi del-Toro, Diego Alonso-López, Nicolas Thierry-Mieg, Yo Yehudi, Arnaud Ceol, Henning Hermjakob, J. Heimbach, Lukasz Salwinski, J. De Las Rivas, Giovanni Cesareni, Maximilian Koch, Gos Micklem, Bernd Roechert, Igor Jurisica, Simona Panni, Sandra Orchard, Ruth C. Lovering, Apollo - University of Cambridge Repository, Biotechnology and Biological Sciences Research Council (UK), European Commission, Ontario Research Fund, Canada Research Chairs, Fondation pour la Recherche Médicale, British Heart Foundation, European Research Council, Wellcome Trust, National Institutes of Health (US), European Bioinformatics Institute [Hinxton] (EMBL-EBI), EMBL Heidelberg, Cancer Research Center (IBMCC-CIC, CSIC-USAL), University of Arizona, GlaxoSmithKline [Stevenage, UK] (GSK), GlaxoSmithKline [Headquarters, London, UK] (GSK), University College of London [London] (UCL), Fondazione Istituto Italiano di Tecnologia, Genova, University of Rome TorVergata, University of Edinburgh, Institut de biologie et chimie des protéines [Lyon] (IBCP), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Biologie Computationnelle et Mathématique (TIMC-IMAG-BCM), Techniques de l'Ingénierie Médicale et de la Complexité - Informatique, Mathématiques et Applications, Grenoble - UMR 5525 (TIMC-IMAG), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), and Orchard, S [0000-0002-8878-3972]
[Background]: Systems biologists study interaction data to understand the behaviour of whole cell systems, and their environment, at a molecular level. In order to effectively achieve this goal, it is critical that researchers have high quality interaction datasets available to them, in a standard data format, and also a suite of tools with which to analyse such data and form experimentally testable hypotheses from them. The PSI-MI XML standard interchange format was initially published in 2004, and expanded in 2007 to enable the download and interchange of molecular interaction data. PSI-XML2.5 was designed to describe experimental data and to date has fulfilled this basic requirement. However, new use cases have arisen that the format cannot properly accommodate. These include data abstracted from more than one publication such as allosteric/cooperative interactions and protein complexes, dynamic interactions and the need to link kinetic and affinity data to specific mutational changes. [Results]: The Molecular Interaction workgroup of the HUPO-PSI has extended the existing, well-used XML interchange format for molecular interaction data to meet new use cases and enable the capture of new data types, following extensive community consultation. PSI-MI XML3.0 expands the capabilities of the format beyond simple experimental data, with a concomitant update of the tool suite which serves this format. The format has been implemented by key data producers such as the International Molecular Exchange (IMEx) Consortium of protein interaction databases and the Complex Portal. [Conclusions]: PSI-MI XML3.0 has been developed by the data producers, data users, tool developers and database providers who constitute the PSI-MI workgroup. This group now actively supports PSI-MI XML2.5 as the main interchange format for experimental data, PSI-MI XML3.0 which additionally handles more complex data types, and the simpler, tab-delimited MITAB2.5, 2.6 and 2.7 for rapid parsing and download., MD, MK, AS, JS, JH and YY were funded by BBSRC MIDAS grant (BB/L024179/1), this grant provided the funds for the design of PSI-MI XML3.0 and its implementation by the IntAct database. KVR was funded by European Commission (FP7-HEALTH-2009-242129 SyBoSS), LL by ELIXIR-IIB, the Italian Node of the European ELIXIR infrastructure, IJ was funded by Ontario Research Fund (GL2–01-030, #34876) and Canada Research Chair Program (#225404), DJL by EMBL Australia and FP7-HEALTH2011-278568, SRB and NTM by Fondation pour la Recherche Médicale (grant n° DBI20141231336) and by the French Institute of Bioinformatics (2015 call), NHC and RCL by British Heart Foundation (RG/13/5/30112), GC by the European Research Council (Grant Agreement 32274), CC was funded by the Wellcome Trust (grant numbers 103139, 063412, 203149) and LS by National Institutes of Health.