Fa. Schabert et al., SCANNING FORCE MICROSCOPY OF ESCHERICHIA-COLI OMPF PORIN IN BUFFER SOLUTION, Journal of vacuum science & technology. B, Microelectronics and nanometer structures processing, measurement and phenomena, 12(3), 1994, pp. 1504-1507
The extracellular and periplasmic surface topography of the E. coli ou
ter membrane protein OmpF reconstituted into 2D crystals in the presen
ce of phospholipids were investigated with a scanning force microscope
in buffer solution. Topographs exhibiting 2 nm lateral resolution are
in good agreement with data from electron microscopy and x-ray crysta
llography, and indicate the exciting possibility to monitor structural
changes of ''live systems'' at molecular resolution by scanning force
microscopy.