8461
PowerBLAST analysis identified six clusters of expressed sequence tags ( ESTs ) , two known genes ( BIR , SUR1 ) mapped previously to this region , and a previously characterized but unmapped gene NEFA ( DNA binding / EF hand / acidic amino - acid - rich ) .
 BIR, SUR1, gene NEFA, DNA binding / EF hand / acidic amino - acid - rich
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 BIR, SUR1, gene NEFA, DNA binding / EF hand / acidic amino - acid - rich