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. 2012 Apr;86(8):4046–4057. doi: 10.1128/JVI.07197-11

Fig 5.

Fig 5

The HLH motif of gp17 contacts the portal protein. (A) Fitting of the gp17 pentamer (PDB ID no. 3EZK) and the gp20 dodecamer (pseudoatomic model; V. Padilla-Sanchez and V. B. Rao, unpublished data) into the cryo-EM density of the motor-bound procapsid (32-Å resolution; EMDB ID no. 1572) shows that the N-terminal ATPase domain of gp17 (N360; orange) is oriented toward the portal (violet). (B) A close-up view of the boxed region in panel A shows that HLH motif of gp17 (red) is the point of contact with the portal protein. Loops of portal subunits are alternately colored blue and green.