... that the cleft of the active site will be located in the interface between the two structural domains of CPY and would be filled by the propeptide, thus uniting the two domains in a body, as if the ... perturbed by the carbohydrate moiety, thusincreasing their fluorescence, since they are in close proximityto the carbohydrate-attachment sites, N13, 87, and 368. In conclusion, the mature enzyme, ... would be composedof a single fragile domain. The propeptide of the proenzymewould be located at the interface of the two domains thuscombining them into one body, to ensure structuralcooperativity.AcknowledgementsWe...