1561
Evidence for involvement of proteins HU and RpoS in transcription of the osmoresponsive proU operon in Escherichia coli .
 GENE: HU; GENE: RpoS; GENE: proU operon
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: HU; GENE: RpoS; GENE: proU operon