Channel-forming (Porin) activity in Herpetosiphon aurantiacus Hp a2.
Detergent extracts of cell envelopes of the gliding bacterium Herpetosiphon aurantiacus formed channels in lipid bilayers. Fast protein liquid chromatography across a HiTrap-Q cation-exchange column demonstrated that a 45-kDa protein forms the channel. The observation of a channel-forming protein suggests that Herpetosiphon aurantiacus Hp a2 has a permeability barrier on its surface.
Harwardt
Rainer
R
Institut für Biologie II, Mikrobiologie, Albert-Ludwigs-Universität, Freiburg, Germany.
Maier
Elke
E
Reichenbach
Hans
H
Weckesser
Jürgen
J
Benz
Roland
R
D041862:Chloroflexi / Q000378:metabolism*; D007473:Ion Channels / Q000502:physiology*; D010539:Permeability; D018272:Porins / Q000032:analysis*
D007473:Ion Channels; D018272:Porins