Format

Send to

Choose Destination
Int J Med Mushrooms. 2018;20(6):537-548. doi: 10.1615/IntJMedMushrooms.2018026264.

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).

Author information

1
Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Key Laboratory of Agricultural Genetics and Breeding, Ministry of Agriculture, National Engineering Research Center for Edible Fungi, National R&D Center for Edible Fungi Processing, Key Laboratory of Agricultural Genetics and Breeding of Shanghai, Shanghai, People's Republic of China.
2
College of Food Science, Shanghai Ocean University, Shanghai, People's Republic of China.
3
National Engineering Research Center of Edible Fungi; Key Laboratory of Applied Mycological Resources and Utilization, Ministry of Agriculture; Shanghai Key Laboratory of Agricultural Genetics and Breeding, Institute of Edible Fungi, Shanghai Academy of Agriculture Science, Shanghai, People's Republic of China.

Abstract

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.

[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for BegellHouse Publisher, Inc.
Loading ...
Support Center