The type IV pilus machinery is a multi-protein complex that polymerizes and depolymerizes a pilus fiber used for attachment, twitching motility, phage adsorption, natural competence, protein secretion, and surface-sensing. An outer membrane secretin pore is required for passage of the pilus fiber out of the cell. Herein, the structure of the tetradecameric secretin, PilQ, from the Pseudomonas aeruginosa type IVa pilus system was determined to 4.3 Å resolution. This is a top view of the tubular structure of PilQ protein (PDB code: 6VE2)
#molecularart ... #immolecular ... #PilQ ... #Pseudomonas ... #CryoEM ... #filament ... Rendered with @proteinimaging and polished with @corelphotopaint
#molecularart ... #immolecular ... #PilQ ... #Pseudomonas ... #CryoEM ... #filament ... Rendered with @proteinimaging and polished with @corelphotopaint
