One of the most unresolved
problems facing the scientific community is figuring out the function of
post-translational modification patterns. Significant results from efforts to
decipher the phosphorylation bio-barcode point to the possibility that many proteins
actually exist in several versions, each with distinct phosphorylation patterns
and roles. Peptide libraries make it relatively easy to simulate protein areas
while studying highly phosphorylated regions is significantly more difficult.
While practically universal techniques can be used to create basic
phosphopeptides, the creation of phosphorylated
peptide remains a significant synthetic problem. The insertion
of multiple phosphate groups into different places on the peptide
simultaneously or sequentially when there are numerous other potential
modification sites is necessary for the synthesis of multiphosphopeptides.
These groups are heavy, unsteady,
and difficult to introduce when they are near together. Furthermore, libraries
made up of several peptides with varied levels and positions of phosphorylation
are necessary if any methods have been discovered to enable the synthesis of phosphorylated
peptides because the same protein region can have numerous alternative phosphorylated
peptide patterns. These techniques are fundamentally distinct from those used
to make straightforward phosphorylated peptides. We notably highlight the
difficulties and significance of synthesizing phosphorylated peptide and their
libraries. Modern approaches are given along with the historical viewpoint. The
various synthetic strategies attempt to address the unique issues involved in
the synthesis of multiphosphopeptides and offer a roadmap for the synthesis of
such libraries.
Applications of the
phosphorylated peptide
Creation of antibodies specific
for the phosphorylation
For proteome identification, mass
standards are developed
Development of assays using
phosphatase substrates
Quantifying and Mapping sites of
phosphorylation
Signal transduction and the cellular
signaling pathways
The investigation of structural
PTMs that control protein function.
Studying the roles that various
disease like pathologies play, such as those in metabolic, neurodegenerative,
and cancer.
The Wall