| abstract |
(57) [Summary]nThe substance is described. The substance comprises any one or more amino acid sequences, including the sequence represented as SEQ ID NO: 2, or a variant thereof, or a homolog thereof, or a fragment thereof, or a derivative thereof, or a mimetic thereof; It may act in a manner that is the same or similar to EtxB and / or CtxB; however, here, the substance does not exhibit GM-1 binding activity. |