Fig. 4
From: Simulations suggest a constrictive force is required for Gram-negative bacterial cell division
Cell wall synthesis with a make-before-break mechanism. a–d show the make-before-break mechanism occurring in sequence: a new cell wall was made underneath the existing network. The peptide crosslinks above the new peptidoglycan (PG) are highlighted in yellow. b The highlighted crosslinks were cleaved after complete hoops of new PG were made. c, d show the relaxation of the network after the cleavage event. e A snapshot of the PG cylinder shows that constriction did not occur with insertion of new PG. f The profile of the midcell radius with respect to the amount of new PG inserted. The averages of four simulations are shown. Error bars indicate standard deviation
