3 torthaí
Pyrularia thionin, isolated from nuts of Pyrularia pubera, is a strongly basic peptide of 47 amino acids. The amino acid sequence and configuration of its four disulfide bonds place this plant peptide, known to be hemolytic, cytotoxic, and neurotoxic, among the thionins. We report and compare
A low-molecular-weight cytotoxic protein has been purified from Pyrularia pubera Michx. (Santalaceae). By comparison with the behavior of proteins of known molecular weight during Sephadex G-75 gel filtration and denaturing electrophoresis, a molecular weight of somewhat less than 6000 is indicated.
Pyrularia thionin is a 47 amino acid basic peptide which resembles wheat purothionin and mistletoe viscotoxin. It is toxic to mice, with an LD50 of 1.5 mg/kg body weight and is cytotoxic to tumor and normal cells in culture, with ID50 values ranging from 0.62 to 17 micrograms/ml. Against seven