Root A set of molecules interacting. A short alphanumeric label identifying an object. Not necessarily unique. Full, descriptive object name. Refers to a list of experiments within the same entry. References an experiment already present in this entry. Crossreference to an external database. Crossreferences to literature databases, e.g. PubMed, should not be put into this structure, but into the bibRef element where possible. Primary reference to an external database. Further external objects describing the object. Refers to a unique object in an external database. Name of the external database. Taken from the controlled vocabulary of databases. Primary identifier of the object in the external database, e.g. UniProt accession number. Bibliographic reference. Bibliographic reference in external database, usually PubMed. A list of additional attributes. Open tag-value list to allow the inclusion of additional data. The name of the attribute. Enables control of the attribute type through reference to an external controlled vocabulary. Root element in the PSI MI CV is MI:0590. A confidence value. Describes the biological source of an object, in simple form only the NCBI taxid. A list of confidence values. Each experiment might assign a different confidence to this object. If no experimentRef is given, it is assumed this confidence refers to all experiments linked to the object. Reference to an external controlled vocabulary. Name of the controlled vocabulary term. Source of the controlled vocabulary term. E.g. the name of the CV and the term ID. Allows to reference an external controlled vocabulary, or to directly include a value if no suitable external definition is available. This contains the controlled vocabulary terms, as a short and optionally as a long form. Refers to the term of the controlled vocabulary in an external database. If no suitable external controlled vocabulary is available, this attributeList can be used to describe the term. Example: Attribute name: Mouse atlas tissue name; attribute value: spinal cord, day 30. Names for an object. A short string, suitable to remember the object. Can be e.g. a gene name, the first author of a paper, etc. A full, detailed name or description of the object. Can be e.g. the full title of a publication, or the scientific name of a species. A numeric parameter, e.g. for a kinetic value The kind of parameter, e.g. "dissociation constant". Accession number of the term in the associated controlled vocabulary. The unit of the term, e.g. "kiloDalton". Accession number of the unit in the associated controlled vocabulary. Base of the parameter expression. Defaults to 10. Exponent of the value. The "main" value of the parameter. A feature, e.g. domain, on a sequence. Names for the feature, e.g. SH3 domain. Reference to an external feature description, for example InterPro entry. Description and classification of the feature. This element is controlled by the PSI-MI controlled vocabulary "featureType", root term id MI:0116. Experimental method used to identify the feature. A setting here overrides the global setting given in the experimentDescription. External controlled vocabulary. If no experimentRef is given, it is assumed this refers to all experiments linked to the interaction. Location of the feature on the sequence of the interactor. One feature may have more than one featureRange, used e.g. for features which involve sequence positions close in the folded, three-dimensional state of a protein, but non-continuous along the sequence. Semi-structured additional description of the data contained in the entry. A interval on a sequence. A location on a sequence. Both begin and end can be a defined position, a fuzzy position, or undetermined. Attribute of the start positions, e.g. "certain" or "n-terminal" The integer position gives the begin position of the feature. The first base or amino acid is position 1. In combination with the numeric value, the attribute 'status' allows to express fuzzy positions, e.g. 'less than 4'. The begin position may be varying or unclear, but localisable to a certain range. Usually written as e.g. 3..5. Attribute of the end positions, e.g. "certain" or "c-terminal" The integer position gives the end position of the feature. The first base or amino acid is position 1. In combination with the numeric value, the attribute 'status' allows to express fuzzy positions, e.g. 'more than 400'. The end position may be varying or unclear, but localisable to a certain range. Usually written as e.g. 3..5. True if the described feature is a linking feature connecting two amino acids rather than extending along the sequence. 'begin' references the first amino acid, 'end' the second. Standard example is a disulfide bridge. Does not reference another feature, therefore is only suitable for linking features on the same amino acid chain. A text describing the availability of data, e.g. a copyright statement. Describes one set of experimental parameters. Publication describing the experiment. All major objects have a numerical id which must be unique to that object within an entry. The object may be repeated, though, e.g. in the denormalised representation. A molecular interaction. Interaction database ID List of experiments in which this interaction has been determined. An experiment in which this interaction has been determined. A list of molecules participating in this interaction. An interaction has one (intramolecular), two (binary), or more (n-ary, complexes) participants. Describes a molecular interactor. Name(s). The short label is typically a short name that could appear as a label on a diagram. An interactor should have an xref whenever possible. If the interactor is not available in external databases, it must be characterised within this object e.g. by its sequence. The molecule type of the participant, e.g. protein. This element is controlled by the PSI-MI controlled vocabulary "interactorType", root term id MI:0313. The normal source organism of the interactor. All major objects have a numerical id which is unique to that object within a PSI MI file. The object may be repeated, though, e.g. in the denormalised representation. A molecule participating in an interaction. Fully describes an interactor or Chromosom