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Free Content Novel thermal hysteresis proteins from low temperature basidiomycete, Coprinus psychromorbidus

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The low temperature basidiomycete, Coprinus psychromorbidus, produced three kinds of thermal hysteresis proteins (THPs) in the extracellular space. Molecular mass of purified fungal THPs were approximately 23 kDa, respectively, however those fungal THPs had different N-terminal amino acid sequences. Those fungal THPs formed ice crystals resembling "Stone Age arrow head". These observations indicate that fungal THPs did not form hexagonal ice crystals to inhibit its growth.

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Keywords: Coprinus psychromorbidus; antifreeze protein; ice morphology; low temperature basidiomycete; snow mold fungi; thermal hysteresis; thermal hysteresis protein

Document Type: Research Article

Publication date: May 1, 2003

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  • CryoLetters is a bimonthly international journal for low temperature sciences, including cryobiology, cryopreservation or vitrification of cells and tissues, chemical and physical aspects of freezing and drying, and studies involving ecology of cold environments, and cold adaptation

    The journal publishes original research reports, authoritative reviews, technical developments and commissioned book reviews of studies of the effects produced by low temperatures on a wide variety of scientific and technical processes, or those involving low temperature techniques in the investigation of physical, chemical, biological and ecological problems.

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