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Song B, Wang W, Jia C, Han Z, Yang J, Yang J, Wu Z, Xu H, Qiao M. Identification and Characterization of a Predominant Hydrophobin in the Edible Mushroom Grifola frondosa. J Fungi (Basel) 2023; 10:25. [PMID: 38248935 PMCID: PMC10820438 DOI: 10.3390/jof10010025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 12/27/2023] [Accepted: 12/27/2023] [Indexed: 01/23/2024] Open
Abstract
Hydrophobins (HFBs) are a group of small, secreted amphipathic proteins of fungi with multiple physiological functions and potential commercial applications. In this study, HFB genes of the edible mushroom, Grifola frondosa, were systematically identified and characterized, and their transcriptional profiles during fungal development were determined. In total, 19 typical class I HFB genes were discovered and bioinformatically analyzed. Gene expression profile examination showed that Gf.hyd9954 was particularly highly upregulated during primordia formation, suggesting its major role as the predominant HFB in the lifecycle of G. frondosa. The wettability alteration profile and the surface modification ability of recombinant rGf.hyd9954 were greater than for the Grifola HFB HGFII-his. rGf.hyd9954 was also demonstrated to form the typical class I HFB characteristic-rodlet bundles. In addition, rGf.hyd9954 was shown to possess nanoparticle characteristics and emulsification activities. This research sheds light on the regulation of fungal development and its association with the expression of HFB genes.
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Affiliation(s)
- Bo Song
- The Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300110, China; (B.S.)
| | - Wenjun Wang
- The Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300110, China; (B.S.)
| | - Chunhui Jia
- The Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300110, China; (B.S.)
| | - Zhiqiang Han
- The Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300110, China; (B.S.)
| | - Jiyuan Yang
- The Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300110, China; (B.S.)
| | - Jiuxia Yang
- The Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300110, China; (B.S.)
| | - Zhenzhou Wu
- The Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300110, China; (B.S.)
| | - Haijin Xu
- The Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300110, China; (B.S.)
| | - Mingqiang Qiao
- The Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300110, China; (B.S.)
- School of Life Science, Shanxi University, Taiyuan 030000, China
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Siddiquee R, Lo V, Johnston CL, Buffier AW, Ball SR, Ciofani JL, Zeng YC, Mahjoub M, Chrzanowski W, Rezvani-Baboli S, Brown L, Pham CLL, Sunde M, Kwan AH. Surface-Induced Hydrophobin Assemblies with Versatile Properties and Distinct Underlying Structures. Biomacromolecules 2023; 24:4783-4797. [PMID: 37747808 DOI: 10.1021/acs.biomac.3c00542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
Hydrophobins are remarkable proteins due to their ability to self-assemble into amphipathic coatings that reverse surface wettability. Here, the versatility of the Class I hydrophobins EASΔ15 and DewY in diverse nanosuspension and coating applications is demonstrated. The hydrophobins are shown to coat or emulsify a range of substrates including oil, hydrophobic drugs, and nanodiamonds and alter their solution and surface behavior. Surprisingly, while the coatings confer new properties, only a subset is found to be resistant to hot detergent treatment, a feature previously thought to be characteristic of the functional amyloid form of Class I hydrophobins. These results demonstrate that substrate surface properties can influence the molecular structures and physiochemical properties of hydrophobin and possibly other functional amyloids. Functional amyloid assembly with different substrates and conditions may be analogous to the propagation of different polymorphs of disease-associated amyloid fibrils with distinct structures, stability, and clinical phenotypes. Given that amyloid formation is not required for Class I hydrophobins to serve diverse applications, our findings open up new opportunities for their use in applications requiring a range of chemical and physical properties. In hydrophobin nanotechnological applications where high stability of assemblies is required, simultaneous structural and functional characterization should be carried out. Finally, while results in this study pertain to synthetic substrates, they raise the possibility that at least some members of the pseudo-Class I and Class III hydrophobins, reported to form assemblies with noncanonical properties, may be Class I hydrophobins adopting alternative structures in response to environmental cues.
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Affiliation(s)
- Rezwan Siddiquee
- School of Life and Environmental Sciences and Sydney Nano, The University of Sydney, Sydney, NSW 2006, Australia
| | - Victor Lo
- School of Medical Sciences and Sydney Nano, The University of Sydney, Sydney, NSW 2006, Australia
| | - Caitlin L Johnston
- School of Medical Sciences and Sydney Nano, The University of Sydney, Sydney, NSW 2006, Australia
| | - Aston W Buffier
- School of Life and Environmental Sciences and Sydney Nano, The University of Sydney, Sydney, NSW 2006, Australia
| | - Sarah R Ball
- Formerly at School of Medical Sciences, The University of Sydney, Sydney, NSW 2006, Australia
| | - Jonathan L Ciofani
- School of Medicine, The University of Sydney, Sydney, NSW 2006, Australia
| | - Yi Cheng Zeng
- Formerly at School of Life and Environmental Sciences, The University of Sydney, Sydney, NSW 2006, Australia
| | - Mahiar Mahjoub
- School of Medicine, The University of Sydney, Sydney, NSW 2006, Australia
| | | | | | - Louise Brown
- School of Natural Sciences, Macquarie University, Sydney, NSW 2109, Australia
| | - Chi L L Pham
- Formerly at School of Medical Sciences, The University of Sydney, Sydney, NSW 2006, Australia
| | - Margaret Sunde
- School of Medical Sciences and Sydney Nano, The University of Sydney, Sydney, NSW 2006, Australia
| | - Ann H Kwan
- School of Life and Environmental Sciences and Sydney Nano, The University of Sydney, Sydney, NSW 2006, Australia
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