Cellular organization of enolase. Immunofluorescence micrographs using monoclonal anti-HA antibody. The chromosomal copy of eno is tagged with the HA epitope tag. A, strain AT29 (rne1–417 eno::HA). B, AT60 (rne1–417 ΔrhlB eno::HA). C, AT30 (rne1–659 eno::HA). D, AT63 (Δpnp,ΔrhlB eno::HA). E, strain AT58 (ΔrhlB eno::HA). Where rne was replaced by rne1–417 the strains grew as mixed populations of filaments and short cells (5). The described localization pattern was present in 95–98% of cells (see “Experimental Procedures”). Scale bar, 1 μm.