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Computational analysis of fusion protein of anti-HER2 scFv and alpha luffin: A new immunotoxin protein for HER2 positive cancers

Barkhordari, Farzaneh; Rismani, Elham; Tabasinezhad, Maryam; Asgari, Saeme; Nematollahi, Leila; Talebkhan Garoosi, Yeganeh

Brazilian Journal of Pharmaceutical Sciences; Vol. 58 (2022)

Universidade de São Paulo. Faculdade de Ciências Farmacêuticas 2022-12-23

Acesso online

  • Título:
    Computational analysis of fusion protein of anti-HER2 scFv and alpha luffin: A new immunotoxin protein for HER2 positive cancers
  • Autor: Barkhordari, Farzaneh; Rismani, Elham; Tabasinezhad, Maryam; Asgari, Saeme; Nematollahi, Leila; Talebkhan Garoosi, Yeganeh
  • Assuntos: Cancer; Targeted Therapy; Fusion Protein; Molecular Dynamics; Immunotoxin
  • É parte de: Brazilian Journal of Pharmaceutical Sciences; Vol. 58 (2022)
  • Descrição: The present study deals with the computational design and analysis of a novel fusion protein based on a single chain variable fragment that binds to the extracellular domain of human epidermal growth factor receptor 2 (HER2) in breast cancer cells. Alpha luffin, a small ribosome inactivating protein (RIP), was attached to the anti-HER2 antibody fragment. I-TASSER modeling provided the full-length structure of the fusion protein. Molecular docking evaluated the molecular interactions of the complementarity-determining regions of designed fusion protein to HER2. Energy minimization and molecular dynamics simulations were conducted to refine the complexes. RMSD plot revealed reasonable stability of the fusion protein during the simulation. The free binding energy profile of complexes affirmed a favorable binding affinity of proteins in complex with HER2 using molecular mechanics Poisson-Boltzmann surface area (G-MMPBSA) algorithm. In general, this approach looks promising in the development of new fusion proteins in terms of immunotoxins with appropriate cytotoxicity.
  • Títulos relacionados: https://www.revistas.usp.br/bjps/article/view/206000/189576
  • Editor: Universidade de São Paulo. Faculdade de Ciências Farmacêuticas
  • Data de criação/publicação: 2022-12-23
  • Idioma: Inglês

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