503
A centromere in S . cerevisiae consists of a region of DNA , approximately 150 bp in length , containing three important sequence elements , which are folded with proteins into a specific conformation in the chromatin ( the yeast kinetochore ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
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