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. 2003 Oct 28;4:51. doi: 10.1186/1471-2105-4-51

Figure 2.

Figure 2

An example of data relationships represented within the API. A protein and a functional domain (both subclasses of BiologicalData) have a hierarchical relationship. The hierarchy relationship (a subclass of BiologicalLink) is extended to describe a protein region (with a start and end coordinate), and further extended to describe a functional domain region (which also includes a confidence score).