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Sequence analysis revealed that the beta - lactamases genes recovered from the permafrost demonstrated an amino - acid homology ( 53 - 84 % ) to known beta - lactamases from beta - lactams producing Streptomyces .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
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