T cell signalling involves a number of intracellular processes. An early step involves phosphorylation of various intracellular molecules. What is a key outcome of the phosphorylation of a molecule?

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The pairing and binding of phosphorylation sites on partner proteins, to initiate and enhance activation

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Molecular degradation of the phosphorylated protein to stop signalling

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The generation of binding sites for other molecules

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The immediate transportation of phosphorylated proteins to the nucleus, activating transcription factors

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T cell signalling involves a number of intracellular processes. An early step in...

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