Table 3. Fatty acid distribution in individual phospholipid classes in yeast nuclear membrane.
Relative proportion of the major phospholipid classes PC (phosphatidylcholine), PE (phosphatidylethanolamine), and PI in the nuclear membrane fraction and the positional distribution of fatty acids in sn-1 and sn-2 positions of these phospholipid classes (in mol %). The relative abundance of fatty acids is given as percentage of total. Values represent means±S.D. of three independent determinations. nd, not detected.
| PC (42%) | PE (32%) | PI (22%) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Position | Position | Position | |||||||
| Fatty acid | Total (%) | sn-1 | sn-2 | Total (%) | sn-1 | sn-2 | Total (%) | sn-1 | sn-2 |
| C16:0 | 23.2±2.3 | 88 | 35.8±4.7 | 90 | 38.3±4.3 | 76 | |||
| C16:1 | 45.6±6.4 | 50 | 50 | 27.5±3.9 | 56 | 17.1±2.8 | 86 | ||
| C18:0 | 5.4±0.9 | 79 | 4.6±0.8 | 54 | 14.8±2.5 | 69 | |||
| C18:1 | 25.5±2.9 | 94 | 31.4±4.1 | 83 | 28.0±3.4 | 89 | |||
| C26 | nd | nd | 1.4±0.3 | 92 | |||||