Ricin (/ ˈ r aɪ s ɪ n / RY-sin) is a lectin (a carbohydrate-binding protein) and a highly potent toxin produced in the seeds of the castor oil plant, Ricinus communis.The median lethal dose (LD 50) of ricin for mice is around 22 micrograms per kilogram of body weight via intraperitoneal injection. Oral exposure to ricin is far less toxic. An estimated lethal oral dose in humans is ...
摘要 蓖麻毒蛋白是在蓖麻中发现的,有很强的毒性,可抑制蛋白合成的蛋白质.作为一种重要的抗肿瘤药物及生物杀虫剂具有广阔的应用前景.对蓖麻毒蛋白的结构、毒性作用机理、纯化方法及其在肿瘤导向治疗和生物杀虫方面的研究进展进行了简述. Ricin is a powerful protein toxin found in the castor plant, Ricinus ...