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Enterobacteria phage T4
Enterobacteria phage T4 is a bacteriophage that infects ''Escherichia coli'' bacteria. The T4 phage is a member of the T-even phages, a group including enterobacteriophages T2 and T6. T4 is capable of undergoing only a lytic lifecycle and not the lysogenic lifecycle.
==Genome and structure==
The T4 phage's double-stranded DNA genome is about 169 kbp long and encodes 289 proteins. The T4 genome is terminally redundant and is first replicated as a unit, then several genomic units are recombined end-to-end to form a concatemer. When packaged, the concatemer is cut at unspecific positions of the same length, leading to several genomes that represent circular permutations of the original. The T4 genome bears eukaryote-like intron sequences.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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