Figure 2. Cryo-EM imaging of bacteriophages.

(A) Purified HP3 virus (i) including dimensions (vi) with extended tail fibers (ii and iv), tail contracted (iii) and with DNA absent (v). (B) CF2 virus (i) including dimensions (vi) with tail contracted (ii), DNA absent (iii), DNA injecting (iv) and DNA and tail absent (v). (B) EC1 virus (i) with tail fibers extended (ii and iv), DNA injecting (iii), and tails contracted (v).