Dipalmytoylphosphatidylcholine DPPC

It is anticipated that oligomerization as well as lattice formation is not always straightforward for a number of membrane proteins overexpressed in a host cell like E. coli, unless identiflcation and incorporation of such specific endogenous lipids to promote the formation of a 2D lattice are seriously taken into account. As a reference system to examine the NMR spectra of such proteins by site-directed NMR approach, it seems to be very important to gain an insight into how the NMR spectra of [3- C]Ala- or [l- C]Val-labeled bR incorporated into neutral lipid bilayers such as egg phosphatidylcholine (PQ, dimyristoylphosphatidylcholine (DMPC) or dipalmytoylphosphatidylcholine (DPPC) are modified by the presence or absence of a 2D crystalline lattice. 

---