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Vol 59(2025) N 2 p. 244-252; DOI 10.1134/S0026893324700870 ![]() N.G. Muradyan1, A.A. Sargsyan1,2, V.G. Arakelov1, A.K. Paronyan1,2, G.G. Arakelov1,2*, K.B. Nazaryan1,2 πDMD Simulation as a Strategy for Refinement of AlphaFold2 Modeled Fuzzy Protein Complexes Structures 1Laboratory of Computational Modeling of Biological Processes, Institute of Molecular Biology of the National Academy of Sciences of the Republic of Armenia (NAS RA), Yerevan, 0014 Armenia2Russian-Armenian University, Yerevan, 0051 Armenia *g_arakelov@mb.sci.am Received - 2024-08-10; Revised - 2024-10-11; Accepted - 2024-10-11 Disordered proteins are of great interest due to their structural features, as they do not have well- defined three-dimensional structures. These proteins, often called intrinsically disordered proteins or regions, play critical roles in various cellular processes and are associated with the development of a number of diseases. Our in silico research focused on the investigation of protein complexes that include both ordered proteins, such as 14-3-3γ, and proteins containing intrinsically disordered regions, such as nucleocapsid (N) of SARS-CoV-2 and p53. Our findings demonstrate, that complexes modeled by AlphaFold2 and refined using discrete molecular dynamics simulations acquire assembled structures in disordered regions. After refinement, the modeled complexes exhibit a degree of structural assembly that addresses a key challenge in studying disordered proteins-their propensity to evade stable conformations. AlphaFold2, πDMD, intrinsically disorder regions, nucleocapsid protein, p53, 14-3-3γ |