Effective representation of protein molecular structures applied in their comparison

Comparison of protein, molecular structures is often an essential component process of protein structure similarity searching, identification of protein functions, and investigation of the evolution of living organisms. Effective representation of protein structures in the comparison process is then very important for its successfulness and swiftness. In the paper, we present considerations on using various, representative features describing protein structures in their comparison. We also show our research on protein structure comparison with the use of intra-residual distance matrices, which are transformed to the grayscale images and described by means of the Universal Image Quality Index for faster comparison and database retrieval.

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