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Fig. 6. Vps1p is required for the cell cortex and polarized localization of Sla1p. The subcellular localization of Sla1p and actin morphology were altered in vps1
and the vps1 GTPase mutants. The genomic copy of SLA1 in strains YMC457 (vps1
), YMC458 (vps1
with wild-type VPS1, Vps1WT) and YMC459-461 (vps1 GTPase mutants, vps1K42E, vps1S43N and vps1G315D, respectively), was tagged with GFP at its C terminus and the resulting strains were incubated at 30°C to the exponential phase followed by actin staining. The actin organization and the subcellular localization of Sla1p from vps1
and the vps1 GTPase mutants were visualized under Leica microscopy (bar, 5 µm).