Ubiquinone, or coenzyme Q (CoQ), is a vitamin like lipid soluble molecule that features prominently in most cellular lipid membranes, but is also found in substantial amounts in the IMM [37].
However, the technical limitations associated with analyses of peptides can be significant, both due to the poor half-life of short peptides in the intracellular milieu of mammalian cells and because transfer of most peptides across cellular membranes is inefficient.
Glycosphingolipids (GSLs) are found in cellular membranes of most organisms and play important roles in cell-cell recognition, signaling, growth, and adhesion, among others.
Unoxidized and oxidized components of phosphatidylcholine (PC), the most prevalent phospholipid in CNS cellular membranes, were measured in cerebral spinal fluid (CSF) samples obtained from 21 children diagnosed with low- (n = 7), standard- (n = 7), or high- (n = 7) risk ALL.
PC is the most abundant phospholipid in mammalian cellular membranes, bile, and lipoproteins.
Previous studies also have shown lower levels of glycerophosphocolines in HCC patients, which are the most abundant phospholipid in mammalian cellular membranes [ 11].
If the holding potential is close to the resting voltage of the cell, as is the case for some, but not all, inhibitory conductances, most of the cellular membrane will be held near the desired reversal potential.
The cellular components in which most proteins are located are the cellular membranes and the nucleus, a fact additionally present in their categorization based on subcellular location.
This structure clearly indicates an amphiphilic character of this compound, thus pointing towards the cellular membranes as the most probable site of their action [ 14].
