Figure 1.

Conceptual data schema for DWARF, using Logical Data Structure (LDS) notation. Each box represents an entity, which is implemented as a database table. Primary Key attributes that identify each data instance of the entity are underlined. Entities associated with the protein are shaded in dark grey on the upper left, protein structure in white on the upper right, and entities describing protein sequence properties are shaded in light grey. Lines between the entities describe existing relationships.