Task: Named Entity Recognition
Input (English):  The gene atp6 , encoding subunit 6 of the mitochondrial F0 - ATPase complex , has been characterized from both the normal ( fertile ) and Ogura ( male - sterile ) radish cytoplasms in order to determine if previously identified atp6 transcriptional differences could play a role in cytoplasmic male sterility .
Output (English): gene atp6