... Sicurezza degli Alimenti, Universita`di Parma, Parma, ItalyThe structure of bovine odorant-binding protein (bOBP)revealedastrikingfeatureofadimerformedbydomainswapping2[Tegoni, M ., Ramoni, ... receptor,as in bacterial chemotaxis [ 14,15].5Indeed, a broadspectrum of activity and a relatively weak affinity forodorants have been found in mammalian OBPs [ 9,12,16–18], and c lear experimental ... facility,SIGMA PLOT5.0 (Cambridge Soft Corp.,Cambridge, MA, USA). Saturation levels were determinedfrom calibration curves obtained b y incubating increasingconcentrations of AMA (0.076–5 lM) with a...