Proteins and biomolecules with exposed charged and phosphorylated groups

Proteins and biomolecules with exposed charged and phosphorylated groups represents a broad category of biological entities rather than a single discrete therapeutic target. Phosphorylation is a ubiquitous post-translational modification where a phosphate group is covalently attached to proteins, primarily on serine, threonine, or tyrosine residues, serving as a molecular switch for signal transduction and metabolic regulation (UniProt, 2023). In clinical practice, these charged groups are often the focus of phosphate-binding therapies, such as Lanthanum carbonate or Sevelamer, which are used to manage hyperphosphatemia in patients with chronic kidney disease by sequestering inorganic phosphate in the gut (NIH, 2022). Furthermore, the presence of exposed charged groups on biomolecules is critical for protein-protein interactions and the structural integrity of the extracellular matrix, particularly in bone mineralization (PubMed, 2021). Because this term encompasses a vast array of proteins, lipids, and metabolites, it is classified as a general molecular feature rather than a specific receptor or enzyme. Consequently, pharmacological intervention targeting these groups is typically characterized by physical sequestration or non-specific ionic interactions rather than high-affinity binding to a unique pocket (PubChem, 2023).

Other names

Phosphorylated proteinsCharged biomoleculesPhosphoproteinsPhosphate-bearing molecules

Binding and sequestration of phosphate ions or phosphorylated moieties to prevent absorption or modulate biological activity.