Protein Structural Signatures Revisited: Geometric Linearity Of Main Chains Are More Relevant To Classification Performance Than Packing Of Residues
BIOINFORMATICS AND BIOMEDICAL ENGINEERING, IWBBIO 2019, PT I(2019)
摘要
Structural signature is a set of characteristics that unequivocally identifies protein folding and the nature of interactions with other proteins or binding compounds. We investigate the use of the geometric linearity of the main chain as a key feature for structural classification. Using polypeptide main chain atoms as structural signature, we showed that this signature is better to preciselly classify than using Ca only. Our results are equivalent in precision to a structural signature built including artificial points between Cas and hence we believe this improvement in classification precision occurs due to the strengthening of geometric linearity.
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关键词
Structural signature, Protein main chain, Geometric linearity, Structure classification
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