19887
Based on chemical shift perturbations we have mapped protein - protein and protein - RNA interfaces and complemented this NMR - derived information with SAXS data , as well as SANS measurements on subunit - selectively deuterated samples of the ternary complex .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
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