Exotoxin: A specific, soluble, antigenic, usually heat labile, injurious substance elaborated by certain gram-positive or gram-negative bacteria; it is formed within the cell, but is released into the environment where it is rapidly active in extremely small amounts; most exotoxins are proteinaceous (MW 70,000-900,000) and can have the toxic portion of the molecule destroyed by heat, prolonged storage, or chemicals; the nontoxic but antigenic form is a toxoid. SYN: ectotoxin, extracellular toxin.
Source: Stedman's Medical Spellchecker, © 2006 Lippincott Williams & Wilkins. All rights reserved.
Exotoxin: toxic substances produced by certain bacteria, that are found outside the bacterial cell or free in the culture medium; they are heat labile proteins and are among the most poisonous substances known; some fungi also produce exotoxins.
Source: CRISP
Exotoxin: Toxins produced, especially by bacterial or fungal cells, and released into the culture medium or environment.
Source: MeSH 2007
Source - MeSH 2007
Source - CRISP
Source - MeSH 2007
Source - CRISP
Source: CRISP
The following list attempts to classify Exotoxin into categories where each line is subset of the next.
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