[Radiosensitive mutants of Escherichia coli with disrupted cell membrane permeability].
Membrane proteins and cell permeability of Escherichia coli B/r and different substrains of B/r containing mutations of loci uvrB, exrA, lon and suppressors of that mutations were studied. Membrane proteins were found to be modified only in E. coli B/r exrA. The content of 40 000--70 000 D polypeptides was increased and the content of 80 000--100 000 D polypeptides was decreased. Alteration of membrane proteins in E. coli B/r exrA was associated with the impaired permeability of cell membrane.
D002463:Cell Membrane Permeability; D003470:Culture Media; D004926:Escherichia coli / Q000032:analysis / Q000502:physiology* / Q000528:radiation effects; D005796:Genes; D008565:Membrane Proteins / Q000032:analysis; D009154:Mutation; D014466:Ultraviolet Rays
D003470:Culture Media; D008565:Membrane Proteins
Radiochuvstvitel'nye mutanty Escherichia coli s narushennoĭ pronitsaemost'iu kletochnoĭ obolochki