Figure 14From: Morphogenesis of the T4 tail and tail fibersThe structure of the collar and whiskers; reprinted from [5]. A, Cutaway view of the tail neck region. B, The structure of the gp15 hexameric ring in the extended and contracted tail. C, and D, Side and top views of the collar structure. For clarity, only one long tail fiber (LTF) is shown. The uninterpreted density between the fibritin molecules is indicated with brown color and labeled "NA".Back to article page