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Comparison of the invariant conservation profile (ICP) for P00918 generated from the reduced SPT data set (~40 K) with the ICP generated from the full SPT data set (~2.1 M). The reduced SPT set was created from an inverted index of trigrams. The rmsd difference between the traces is only 0.042. This was typical for the 4,248 traces in the SPT data set.
