Table 3. Number of Lipids in the S Protein Membrane System.
| lipid typea | outer leafletb | inner leafletb |
|---|---|---|
| DPPC | 48 | 46 |
| POPC | 72 | 69 |
| DPPE | 144 | 138 |
| POPE | 216 | 207 |
| DPPS | 48 | 46 |
| POPS | 72 | 69 |
| PSM | 240 | 230 |
| CHOL | 360 | 345 |
a
DPPC for di-palmitoyl-phosphatidyl-choline; POPC for palmitoyl-oleoyl-phosphatidyl-choline; DPPE for di-palmitoyl-phosphatidyl-ethanolamine; POPE for palmitoyl-oleoyl-phosphatidyl-ethanolamine; DPPS for di-palmitoyl-phosphatidyl-serine; POPS for palmitoyl-oleoyl-phosphatidyl-serine; PSM for palmitoyl-sphingomyelin; and CHOL for cholesterol.
b
The numbers of lipids in the upper and lower leaflets are different because of the area of the CP domain (model 1) embedded in the lower leaflet. For the CP model 2, the lower leaflet has the same number of lipids as in the upper leaflet.