FIGURE 6.

Relaxation of SecYEβ after translocation shown in Fig. 4. The protein is viewed from the cytoplasmic side. Shown are the results of simulation sim3 (see Table 1). The representation of the protein and plug is the same as in Fig. 1. (A) SecYEβ, immediately after translocation of deca-alanine (sim1). The plug is still outside the channel. (B) SecYEβ, 1.4 ns after the translocation. The pore ring, shown in surface representation and colored yellow, is nearly closed. (C) SecYEβ 3.6 ns after helix translocation. The plug has retracted back into the channel, effectively blocking it again.