3796
As a consequence , our structural data point out a 2 : 1 ligand to G - tetrad molar ratio , which has never been reported before in a telomeric intramolecular quadruplex structure .
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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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