Cells and their membranes-the lock and key So in biology we were discussing cell membranes and the effects and processes viruses impose on the cell. Take lytic infection for example-in basic terms attaching to the cell, using one of the cells protein channels in the phospholipid bilayer and injecting its genetic material thus using the cell as a factory to make copies. Well this one man, whose name I shall not mention mainly because I do not remember, had the HIV virus but never got AIDS. The reason being because the man had no protein channels in his cells. Therefore there was no way of getting the genetic material into the cell. Leave diffusion across the membrane out of the question since RNA and DNA are not selectively permeable to it. And more interesting is how he lived. How were larger molecules and such transported in and out of the cell without the integeral membrane proteins? Maybe proteins and larger molecules could be exported and imported through exo and endo cytosis but other than that I could not see how he lived. That, if anyone is willing to answer, is an answer I am still looking for.