
Keywords: توپولوژی دوگانه; TMD; transmembrane domain; EMD; extramembrane domain; PE; phosphatidylethanolamine; CscB; sucrose permease; MPB; 3-(N-maleimidylpropionyl)-biocytin; SCAMâ¢; substituted cysteine accessibility method applied to TMDs; CscB*; sucrose permease lacking native