| 摘要 |
Modified botulinum toxin (BoNT) which exhibits a natural heavy chain and a modified light chain, where the light chain is modified at its N terminal end that exhibits a chain extension in the direction from the N- to the C-terminal end. Modified botulinum toxin (BoNT), which exhibits a natural heavy chain and a modified light chain, where the light chain is modified at its N terminal end that exhibits a chain extension in the direction from the N- to the C-terminal end, with a structure of (-(Cy) n-(tag) m-(X) l). Cy : cysteine residue, where at least one of the cysteine residues in the chain extension is coupled to at least a chain polyethylene glycol; tag : any tag, preferably histidine tag or streptavidin tag; X : any naturally occurring amino acid; n : 1-50; m : 0 or 1; and l : 0-50. Independent claims are included for: (1) a composition for human and/or veterinary medicine comprising the modified botulinum toxin; (2) a nucleic acid which codes for the modified botulinum toxin; (3) a vector comprising the nucleic acid; and (4) a host cell comprising the vector. ACTIVITY : Muscular-Gen; Neuroprotective; Muscle-Relaxant; Antiinflammatory; Gastrointestinal-Gen; Inotropic; Dermatological. MECHANISM OF ACTION : None given. |
