Structural Insights into Protein-Aptamer Recognitions Emerged from Experimental and Computational Studies(324 views) Troisi R, Balasco N, Autiero I, Vitagliano L, Sica F
Int J Mol Sci (ISSN: 1422-0067linking), 2023 Nov 14; 24
(22
): N/D-N/D.
Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy.
Institute of Biostructures and Bioimaging, CNR, 80131 Naples, Italy.
Institute of Molecular Biology and Pathology, CNR c/o Department of Chemistry, University of Rome Sapienza, 00185 Rome, Italy.
References: Not available.
Structural Insights into Protein-Aptamer Recognitions Emerged from Experimental and Computational Studies
Aptamers are synthetic nucleic acids that are developed to target with high affinity and specificity chemical entities ranging from single ions to macromolecules and present a wide range of chemical and physical properties. Their ability to selectively bind proteins has made these compounds very attractive and versatile tools, in both basic and applied sciences, to such an extent that they are considered an appealing alternative to antibodies. Here, by exhaustively surveying the content of the Protein Data Bank (PDB), we review the structural aspects of the protein-aptamer recognition process. As a result of three decades of structural studies, we identified 144 PDB entries containing atomic-level information on protein-aptamer complexes. Interestingly, we found a remarkable increase in the number of determined structures in the last two years as a consequence of the effective application of the cryo-electron microscopy technique to these systems. In the present paper, particular attention is devoted to the articulated architectures that protein-aptamer complexes may exhibit. Moreover, the molecular mechanism of the binding process was analyzed by collecting all available information on the structural transitions that aptamers undergo, from their protein-unbound to the protein-bound state. The contribution of computational approaches in this area is also highlighted.
Structural Insights into Protein-Aptamer Recognitions Emerged from Experimental and Computational Studies
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