Current Microbiology

, Volume 19, Issue 3, pp 189–191 | Cite as

Modification of the porin function by the membrane components used for the reconstitution of model membranes

  • Rajendra K. Saxena
  • Junko Ishii
  • Taiji Nakae


Diffusion rate of the cationic solute through the porin pore was five times higher in the vesicles made of acidic phospholipids than in that of zwitterionic phospholipids. In contrast, diffusion of the anionic solute through these vesicles was reciprocally reversed. Diffusion ofpara-nitrophenyl phosphate was enhanced in the presence of lipopolysaccharide and the phospholipids extracted from bacterial cells as compared with the diffusion through porin in phosphatidyl choline.


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Copyright information

© Springer-Verlag New York Inc. 1989

Authors and Affiliations

  • Rajendra K. Saxena
    • 1
  • Junko Ishii
    • 2
  • Taiji Nakae
    • 2
  1. 1.Department of MicrobiologySouth Campus University of DelhiNew DelhiIndia
  2. 2.Institute of Medical Sciences and School of MedicineTokai UniversityIsenaraJapan

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