8444
The PHD finger module of Spp1 , which reads H3K4 methylation close to promoters , promotes DSB formation by tethering these regions to chromosome axes and activating cleavage by the DSB proteins .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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