Exploring Bacterial Organelle Interactomes: A Model of the Protein-Protein Interaction Network in the Pdu Microcompartment
Figure 5
N-terminal extension sequences and atomic details of the PduD peptide docked onto a PduA hexamer.
(A) Sequences of the five N-terminal extensions proposed to be acting as targeting peptides. An arginine is recurrently found near the center of the peptide (red). (B) The hydrophobic surface (in beige) of the PduD N-terminal tail peptide is predicted to interact with the C-terminal tail of PduA. A central arginine (in red), which is found in all of the N-terminal peptides predicted to dock in the cleft, is consistently oriented to make interactions with a glutamate in the BMC domain.