1842
Expression of lacZ from the promoter of the Escherichia coli spc operon cloned into vectors carrying the W205 trp - lac fusion .
 GENE: lacZ; GENE: Escherichia coli spc operon; GENE: trp; GENE: lac
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: lacZ; GENE: Escherichia coli spc operon; GENE: trp; GENE: lac