单词 | toxin-antitoxin |
释义 | tox·in-an·ti·tox·in ![]() n. 1. A pair of genes that encode a stable, toxic protein and a corresponding unstable antitoxin that is either a protein or RNA, found in many bacteria either on a plasmid or on the bacterial chromosome. 2. A mixture of a toxin and its antitoxin with a slight excess of toxin, formerly used as a vaccine. |
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