Ichinose H, Wariishi H, Tanaka H.
Faculty of Agriculture, Kyushu University, Fukuoka, Japan.
Abstract
A cDNA encoding cytochrome P450 oxidoreductase (CPR) from the lignin-degrading basidiomycete Coriolus versicolor was identified using RT-PCR. The full-length cDNA consisted of 2,484 nucleotides with a poly(A) tail, and contained an open reading frame. The G+C content of the cDNA isolated was 60%. A deduced protein contained 730 amino acid residues with a calculated molecular weight of 80.7 kDa. The conserved amino acid residues involved in functional domains such as FAD-, FMN-, and NADPH-binding domains, were all found in the deduced protein. A phylogenetic analysis demonstrated that C. versicolor CPR is significantly similar to CPR of the basidiomycete Phanerochaete chrysosporium and that they share the same major branch in the fungal cluster. A recombinant CPR protein was expressed using a pET/ Escherichia coli system. The recombinant CPR protein migrated at 81 kDa on SDS polyacrylamide gel electrophoresis. It exhibited an NADPH-dependent cytochrome c reducing activity.
PMID: 12226721 [PubMed – indexed for MEDLINE]
http://www.ncbi.nlm.nih.gov/pubmed/12226721
Kunitaka Hirose, Michinori Hakozaki, Kenichi Matsunaga, Chikao Yoshikumi, Tetsuya Hotta, Masaaki Yanagisawa, Mikio Yamamoto, Hideya Endo.
To elucidate the effects of PSK, a protein-bound polysaccharide from Coriolus versicolor, on gene expression in tumor cells, we prepared cDNA clone libraries from PSKtreated and untreated cells of a rat ascites hepatoma line, AH66, which was previously shown to be susceptible to the antitumor action of this compound. Two PSK-induced and one suppressed cDNA clones were selected from these libraries by using a differential colony hybridization and RNA blot hybridization. PSK was thus shown to have a direct effect on the transcription and consequently on the translation of tumor cells.
Full article: https://mushroomstudies.co/wp-content/uploads/2010/09/Cloning-of-sequences-induced-and-suppressed-by-administration-of-PSK-antitumor-protein-bound-polysaccharide.pdf
Coriolus versicolor, all natural, immunotherapy, Coriolus, PSP, PSK, Yun Zhi, Yunzhi, turkey tail, Trametes versicolor, Trametes, immune booster, immune builder, mushroom studies, mushroom science, mushroom benefits, myceila, cancer, tumor, virus, diseases