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Straight and curved segments of FtsZ filaments. 6.7 nm slices containing example straight and curved segments of FtsZ filaments. Abrupt ‘kinks' were sometimes seen (black arrows) as well as direct connections of straight filaments to the membrane (white arrowheads). Panels (G) and (H) are NA1000 cells, the other panels (A–F) are cells overexpressing FtsZ G109. Scale bar 50 nm.
