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The morphology of DT571/2 phage and its ltf mutants. A. wild type phage (wt) negative staining; B. wt cryo-EM; C. ltfA− cryo-EM; D. ltfB− cryo-EM. The morphology of the wt LTFs appears more structurally complex than “simple” L-shaped fibers of bacteriophage T5 [17].
