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The ASTRAL compendium for protein structure and sequence analysis
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Abstract
The ASTRAL compendium provides several databases and tools to aid in the analysis
of protein structures, particularly through the use of their sequences. The SPACI
scores included in the system summarize the overall characteristics of a protein structure.
A structural alignments database indicates residue equivalencies in superimposed protein
domain structures. The PDB sequence-map files provide a linkage between the amino
acid sequence of the molecule studied (SEQRES records in a database entry) and the
sequence of the atoms experimentally observed in the structure (ATOM records). These
maps are combined with information in the SCOPdatabase to provide sequences of protein
domains. Selected subsets of the domain database, with varying degrees of similarity
measured in several different ways, are also available. ASTRALmay be accessed at http://astral.stanford.edu/