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J Virol. 1977 May; 22(2): 553-560

Alteration of the Escherichia coli membrane by addition of bacteriophage T4 protein synthesized after infection.

ABSTRACT

Many T4-induced proteins were found associated with the Escherichia coli membrane during infection. Some of these were apparently ionically bound, but many could be identified as integral parts of the inner and outer bacterial membranes by their selective solubilities in guanidine or Sarkosyl. The synthesis and insertion of these proteins into the bacterial membrane were temporally controlled and, once in the membrane, these proteins were stably integrated. Host membrane protein synthesis continued after infection of non-UV-irradiated cells, but was not present, if the cells were irradiated. There were no major redistribution or loss of bacterial proteins from E. coli membranes as a consequence of T4 infection.