title: Modification of tetanus toxin with selective chemical reagents.
mesh_terms: D000478:Alkylation; D001894:Borohydrides; D005019:Ethyl Ethers; D005033:Ethylmaleimide; D005557:Formaldehyde; D006863:Hydrogen-Ion Concentration; D010084:Oxidation-Reduction; D013744:Tetanus Toxin / Q000633:toxicity*; D013774:Tetranitromethane; D014466:Ultraviolet Rays
chemical_list: D001894:Borohydrides; D005019:Ethyl Ethers; D013744:Tetanus Toxin; D005557:Formaldehyde; D013774:Tetranitromethane; D005033:Ethylmaleimide