The given sentence is 'Since SF-1 is acetylated by p300, we next investigated whether this acetylation regulates its activity.'
What relation between protein/gene SF-1 and protein/gene p300 might be summarized in this given sentence?
Format your response as a JSON object with the value as multiple words list, e.g. {'relation': ['regulation', 'activation', 'repression', 'binding', 'complex', 'sponge', 'cofactor', ...']}
If the relation isn't present, give your answer as a single word 'none'. In your response, include at most 12 words that are fully capitalized to emphasize key points.
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