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Disordered proteins:
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Format conversion & validation:
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NMR sample preparation:
Protein disorder:
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Protein solubility:
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Default Phosphate transfer in activated protein complexes expose interaction sites

Phosphate transfer in activated protein complexes expose interaction sites


For many proteins phosphorylation regulates their interaction with other biomolecules. Here, we describe an unexpected phenomenon whereby within a binding interface phosphate groups transfer non-enzymatically from one interaction partner to the other upon activation in the gas-phase. Providing that a high affinity exists between the donor and acceptor sites, this phosphate transfer is very efficient and the phosphate groups only ligate to sites in proximity to the binding region. Consequently, such phosphate transfer reactions may define with high precision the binding site between a phosphoprotein and its binding partner, and in addition reveal that the binding site in this system is retained in the phase transfer from solution to the gas-phase.

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