As previously mentioned, PC and second messengers derived from these phospholipids are fundamental components of the cell membrane and affect its dynamics and protein trafficking.
Two major pathways of intracellular signaling are based on the use of second messengers derived from the membrane phospholipid phosphatidylinositol 4,5-bisphosphate (PIP).
Both arachidonic acid and PIP3 are messenger metabolites derived from membrane phospholipids.
This is true despite the fact that while genes and the messenger RNAs derived from them are not the executers of biological function, they can nonetheless be used as markers of it.
The versatility of Ca2+ as an intracellular messenger derives largely from the spatial organization of cytosolic Ca2+ signals, most of which are generated by regulated openings of Ca2+-permeable channels.
It follows from this discussion that the versatility of Ca2+ as a ubiquitous intracellular messenger derives in large part from putting Ca2+-permeable channels into the right place; only then can they deliver spatially organized Ca2+ signals.
Messenger RNA molecules derived from alternative promoters may differ in the level of transcription initiation, stability and translation efficiency.
Using messenger RNA (mRNA) derived from Arabidopsis seedlings, Weber and colleagues [ 20] identified 541,852 ESTs which accounted for nearly 17,449 gene loci and thus provided very deep coverage of the transcriptome.
The exact nature of nonhuman beings mentioned in Scripture angels, or messengers (angel is derived from the Greek word angelos, which is the equivalent of the Hebrew word mal'akh, "messenger")—is not altogether clear, and their roles seem ephemeral (see angel and demon).
Most exons (75%) are also overlapped by TCs, possibly derived from messenger RNA (mRNA) (Additional file 1, Table S1).
