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. 1999 Dec 13;147(6):1223–1236. doi: 10.1083/jcb.147.6.1223

Figure 3.

Figure 3

The drs2Δ mutant exhibits a cold-sensitive defect in the endocytic pathway. (A) Wild-type, drs2Δ, and arf1Δ strains were transformed with a plasmid carrying the Ste3-myc construct (pSL2624; Givan and Sprague 1997) and grown to early log phase in galactose to induce expression of the STE3-myc protein. Glucose was added to 3% final concentration to repress new synthesis of Ste3-myc and the cultures were shifted to 15°C. Lysates were prepared at the times indicated and immunoblotted for Ste3-myc using the 9E10 c-myc antibody. (B) Wild-type and drs2Δ cells were stained with FM4-64 on ice and shifted to 15°C to initiate endocytosis of the dye. Images were captured at 1 and 4 h after shift to 15°C.