Publicado 12 números por año
ISSN Imprimir: 1521-9437
ISSN En Línea: 1940-4344
Indexed in
Computational Insights into the Molecular Mechanism of the High Immunomodulatory Activity of LZ-8 Protein Isolated from the Lingzhi or Reishi Medicinal Mushroom Ganoderma lucidum (Agaricomycetes)
SINOPSIS
Ling zhi-8 (LZ-8) is the first fungal immunomodulatory protein (FIP) isolated from the lingzhi or reishi medicinal mushroom, Ganoderma lucidum. LZ-8 effectively induces interleukin 2 expression and secretion by forming a stable homodimer, and it is regarded as a good candidate to become a new therapeutic agent and/or functional food supplement. However, the molecular mechanism by which LZ-8 dimerization influences the regulation of interleukin 2 is not clear. In this study we performed structure-based multiple alignment of LZ-8 and an FIP from Volvariella volvacea, compared the electrostatic potential of their protein surfaces, and developed a model summarizing the unique electrostatic interaction in LZ-8 dimerization. In addition, further electrostatic potential and virtual amino acid mutation analyses suggested that L10, W12, and D45 are the key amino acid residues responsible for the protein's high immunomodulatory activity. These findings may provide useful insights into the design and construction of a new FIP mutant for use in treating and preventing autoimmune diseases.
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