Abstract
Post-translational modifications (PTMs) are chemical or physical changes to proteins that can alter structure/function relationships and thus influence catalysis, cell localization and interactions with other proteins and biomolecules. There are over 200 recognized PTMs, generating a vast scope for altering protein function and increasing the potential for complex regulatory cross-talk between diverse modifications. Protein phosphorylation is of major significance since 30-50% of all cellular proteins may be targeted1,2. Phosphorylation is a transient means of amplifying environmental signals to rapidly alter protein structure, interactions and ultimately, function.
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