1467
We have identified the gene encoding sigma E using a genetic screen designed to isolate trans - acting mutations that abolish expression from either htrA or rpoHP3 , two promoters recognized uniquely by sigma E - containing RNA polymerase .
 GENE: sigma E; GENE: htrA; GENE: rpoHP3; GENE: sigma E; GENE: RNA polymerase
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: sigma E; GENE: htrA; GENE: rpoHP3; GENE: sigma E; GENE: RNA polymerase