1037
Small Maf proteins heterodimerize with Fos and may act as competitive repressors of the NF - E2 transcription factor .
 GENE: Small Maf proteins; GENE: Fos; GENE: NF - E2 transcription factor
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: Small Maf proteins; GENE: Fos; GENE: NF - E2 transcription factor