- A protein required for the proper folding and/or assembly of another protein or protein complex.
- One who accompanies a physician during physical examination of a patient of the opposite gender (from the physician).
[Eng. escort, protector, fr. Fr. chaperon, hood, fr. chape, cape, fr. L.L. cappa, fr. L. caput, head]
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Examples: glitazone, GI cocktail, etc.