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Analysis of the DNA sequence upstream of the narQ gene , which encodes the second nitrate - responsive sensor - transmitter protein in Escherichia coli , revealed an open reading frame ( ORF ) whose product shows a high degree of similarity to a number of iron - sulfur proteins as well as to the beta subunit of glutamate synthase ( gltD ) of E . coli .
 GENE: narQ gene; GENE: iron - sulfur proteins; GENE: glutamate synthase; GENE: gltD
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: narQ gene; GENE: iron - sulfur proteins; GENE: glutamate synthase; GENE: gltD