Novel thermal hysteresis proteins from low temperature basidiomycete, Coprinus psychromorbidus.
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.
Hoshino
T
T
Research Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology, 2-17-2-1, Tsukisamu-higashi, Toyohira-ku, Sapporo, Hokkaido 062-8517, Japan.
Kiriaki
M
M
Nakajima
T
T
D021301:Antifreeze Proteins / Q000737:chemistry / Q000378:metabolism*; D003302:Coprinus / Q000378:metabolism*; D003460:Crystallization; D005656:Fungal Proteins / Q000737:chemistry / Q000378:metabolism*; D012914:Snow
D021301:Antifreeze Proteins; D005656:Fungal Proteins