Even if a single formula is deduced, additional tandem mass spectra data as well as literature information is required for more detailed metabolite elucidation from among the many possible structural isomers [38] [41].
MS-DIAL handles raw MS data for the 'entire metabolome profiling', and MS-FINDER uses MS/MS peaks in ASCII format, i.e. the pairs of m/z and intensity, for the structure elucidation from unknown spectra and for the substructure annotation of fragment ions.
Using the example of this system we will consider the methodology of molecular structure elucidation from 2D NMR spectra with the use of computer-assisted methods.
First, these peptides occur at high concentrations in neurohaemal tissues (abdominal PSOs), which are fairly easy to dissect, do not contain other neuropeptides at high concentrations and, thus, allow sequence elucidation from PSOs from a single specimen.
Development of effective strategies to overcome tolerance for clinical applications would benefit from elucidation of the immunologic mechanism(s) regulating T cell tolerance to self.
Further engineering of phytochrome will ultimately benefit from elucidation of the protein chromophore interactions that determine partitioning between potentially signaling-active and -inactive subpopulations.
Moreover, inaccurate structural elucidation may result from the co-elution of compounds that cannot be completely separated.
Thus, our overall understanding of mitochondrial biogenesis in skeletal muscle would benefit from an elucidation of the regulation of Tfam expression, from the level of transcription, to its functional consequences within the mitochondrial matrix.
More recently, research trends have shifted from the elucidation of the genetic and molecular pathways controlling limb development to high-quality imaging of cellular behaviors.
A greater understanding of this regulation will arise from the elucidation of the molecular and cellular biology of solute transporters at both the apical and basolateral membranes of the choroid plexus epithelial cell.
