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PatternQuery:Terminology

1 byte added, 12:51, 25 April 2015
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The key terms used within the '''MotiveQuery PatternQuery (MQPQ)''' environment are defined below. It is important to establish these terms before moving on the description of the principles on which '''MQPQ''' is built. Any input file containing biomolecular structures is parsed and interpreted at several levels. Any of them can be successfully used when creating queries.
=Atom=
All biomolecules are made up of a set of atoms. In the '''MQPQ''' environment, each atom is uniquely identified in the input file by its ''atom name'', ''id'', ''chemical element'', ''chain'' and the residue details the atom belongs to (''PDB residue name'' and ''PDB id'').
=Residue=
The term residues is generally used to refer to any component of a biomolecule. Within the '''MQPQ''' environment, any collection of atoms bound by chemical bonds (covalent, coordinative or ionic) is considered a residue if this fact is appropriately indicated in the input file. Specifically, all the atoms that make up a residue should have the same ''residue name'' (3-letter code) , ''residue serial number'' and ''chain identifier''.
=Pattern=
=Query=
A query is a single declarative expression of the '''MQPQ''' language which describes one or more structural patterns inside an input biomolecule.

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