292380
sAC differentiates from the transmembrane adenylyl cyclase ( tmACs ) – an important source of cAMP ; in that sAC is regulated by bicarbonate anions and it is dispersed throughout the cell cytoplasm .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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