Figure 1
The Betv1-Fe-quercetin complex. The Birthday-molecule Bet v 1 (silver), carrying a siderophore molecule (quercetin) in its pocket binding one iron molecule Fe3+ (white ball). Bet v 1 acts as allergen when its pocket is devoid of iron. Cartoon kindly created by Prof. Luis F. Pacios, Unidad de QuÃmica y BioquÃmica, Departamento de BiotecnologÃa, E.T.S.I. Montes, UPM, 28040 Madrid, Spain.