Virus particles filamentous phage

Many aspects of DNA replication in filamentous phages are similar to that of < >X 174. The unique property, release without cell killing, can be briefly discussed. The release from the cell occurs by a budding process in which the virus particle is always released from the cell with the end containing the A protein first. Interestingly, the orientation of the virus particle across the cell membrane is the same for its entry and exit from the cell. There is no accumulation of intracellular virus particles the assembly of mature virus particles occurs on the inner cell membrane and virus assembly is coupled with the budding process. 

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