Abstract
Phosphopeptides are generally prepared by incorporation of suitable, protected phosphoamino acid derivatives during peptide synthesis using routine coupling protocols. The feasibility of chemical synthesis of phosphorylated peptides by Fmoc-SPPS was greatly enhanced by the introduction of the monobenzyl protecting group for the phosphate group. This minimized β-elimination of the phosphate group and made Fmoc-based synthesis of phosphopeptides the preferred synthesis strategy. Described here is our strategy for the synthesis of phosphopeptides attached to the solid support PEGA via a backbone amide linker type. This linker allows removal of side-chain protection groups without releasing the phosphopeptide from the solid support, thus enabling solid-phase-based pull-down reactions and peptide-protein interaction studies.
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Højlys-Larsen, K.B., Jensen, K.J. (2013). Solid-Phase Synthesis of Phosphopeptides. In: Jensen, K., Tofteng Shelton, P., Pedersen, S. (eds) Peptide Synthesis and Applications. Methods in Molecular Biology, vol 1047. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-62703-544-6_13
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DOI: https://doi.org/10.1007/978-1-62703-544-6_13
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