Fig. 6: Architecture of the contracted baseplate.
From: High-resolution cryo-EM structure of the Pseudomonas bacteriophage E217
a The density map of the contracted baseplate calculated at 5.3 Å displayed at 2.5 σ. Its component proteins separate into two parts: the baseplate cap (devoid of the tail tip) remains at the bottom (b), while the baseplate nut (c) moves up with the contracted sheath. All tail fibers are in downward conformation after contraction.
