Table 4.

Composition of mature sphingolipids

Strain	IPC	MIPC	M(IP)2C
Wild type	35 ± 4	17 ± 2	47 ± 4
pdr10∆	41 ± 2	18 ± 2	41 ± 1
sur1∆	61 ± 3	13 ± 1	26 ± 3
ipt1∆	46 ± 3	48 ± 2	7 ± 1

Note: Strains were W303-1A (wild type), NRY243 (pdr10∆), NRY409 (sur1∆), and NRY410 (ipt1∆). Sphingolipids were labeled with ³²P-phosphate, extracted, and analyzed as described under Materials and Methods