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Figure 4.
Figure 4. Implications for translocation. (a) The surface
representation of the TtSecA dimer (gray) showing the cavity
formed between the PPXD and C-terminal domains exposing a large
number of the hydrophobic residues (yellow) that might
constitute a putative pre-protein (red ellipse) binding site.
(b) Sequence alignment showing conservation of the hydrophobic
residues (yellow boxes) in the cavity.
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