1975
The major transcription factors controlling arginine metabolism in Escherichia coli and Bacillus subtilis , ArgR and AhrC , respectively , are homologous multimeric proteins that form l - arginine - dependent DNA - binding complexes capable of repressing transcription of the biosynthetic genes ( both ) , activating transcription of catabolic genes ( AhrC only ) or facilitating plasmid dimer resolution ( both ) .
 GENE: ArgR; GENE: AhrC; GENE: AhrC
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: ArgR; GENE: AhrC; GENE: AhrC