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We have isolated cDNA clones from rat brain and human liver encoding a putative isoform of the Na , K - ATPase beta subunit .
 GENE: Na , K - ATPase beta subunit
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: Na , K - ATPase beta subunit 
Answer:
 GENE: Na , K - ATPase beta subunit