東京工業大学 · 情報科学
Ohue教授の研究室は、タンパク質間相互作用(PPI)やタンパク質-核酸相互作用の予測を主軸としたインテグレーティブなバイオインフォマティクス研究を推進しています。特に、AlphaFold Multimerを活用した構造予測とコンSENSUS手法を融合した高精度なPPI予測フレームワークの構築に注力しており、実験的検証コストの低減に貢献します。また、タンパク質-RNA相互作用の予測においても、剛体ドッキングと構造データを組み合わせた予測手法を開発し、実データを用いた妥当性の検証を実施しています。
Figures are computed from collected data and may differ slightly.
Supplementary data are available at Bioinformatics online.
Our consensus method successfully predicted a PPI network with greater precision than conventional template/non-template methods, which may thus reduce the cost of validation by laboratory experiments for confirming novel PPIs from predicted PPIs. Therefore, our method may serve as an aid for promoting interactome analysis.
Rapid advancements in protein sequencing technology have resulted in gaps between proteins with identified sequences and those with mapped structures. Although sequence-based predictions offer insights, they can be incomplete due to the absence of structural details. Conversely, structure-based methods face challenges with respect to newly sequenced proteins. The AlphaFold Multimer has remarkable accuracy in predicting the structure of protein complexes. However, it cannot distinguish whether th
Elucidating protein-RNA interactions (PRIs) is important for understanding many cellular systems. We developed a PRI prediction method by using a rigid-body protein-RNA docking calculation with tertiary structure data. We evaluated this method by using 78 protein-RNA complex structures from the Protein Data Bank. We predicted the interactions for pairs in 78×78 combinations. Of these, 78 original complexes were defined as positive pairs, and the other 6,006 complexes were defined as negative pai
Scoring is a challenging step in protein-protein docking, where typically thousands of solutions are generated. In this study, we ought to investigate the contribution of consensus-rescoring, as introduced by Oliva et al. (2013) with the CONSRANK method, where the set of solutions is used to build statistics in order to identify recurrent solutions. We explore several ways to perform consensus-based rescoring on the ZDOCK decoy set for Benchmark 4. We show that the information of the interface s
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