11988
Northern blot analysis of RNAs from a number of mouse tissues reveals that Atp6i is expressed predominantly in osteoclasts , and this predominant expression was confirmed by reverse - transcription polymerase chain reaction ( RT - PCR ) assay and immunohistochemical analysis .
 GENE: Atp6i
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: Atp6i 
Answer:
 GENE: Atp6i