摘要:
A modified Staphylococcal enterotoxin B (SEB) having resistance to a protease and a reduced toxicity and a vaccine comprising said modified SEB are provided. A modified SEB which has an amino acid sequence as set forth in SEQ ID NO: 1 wherein each of the lysine at 97-position and the lysine at 98-position are substituted with any other amino acid, or a derivative thereof and a vaccine comprising said modified SEB or a derivative thereof.
摘要翻译:提供了具有对蛋白酶的抗性和毒性降低的改良的葡萄球菌肠毒素B(SEB)和包含所述修饰的SEB的疫苗。 具有如SEQ ID NO:1所示的氨基酸序列的修饰SEB,其中97位的赖氨酸和98位的赖氨酸被任何其它氨基酸或其衍生物取代,并且包含 所述经修饰的SEB或其衍生物。
摘要:
A novel prophylactic/remedy for immunopathy is provided which is not neutralized by a neutralizing antibody to Staphylococcal enterotoxin B (SEB), known as one of superantigens, and may effectively act as a superantigen. A modified SEB having a reduced reactivity with a neutralizing antibody to SEB (anti-SEB antibody) and a prophylactic/remedy for immunopathy comprising as an active ingredient said modified SEB. The modified SEB of the present invention may be prepared with the evolutionary molecular engineering technique by introducing amino acid substitution in the amino acid sequence of SEB, especially at an epitope recognition site of the anti-SEB antibody in the amino acid sequence of SEB.