1250
The S . typhimurium aspartyl / asparaginyl beta - hydroxylase homologue ( designated lpxO ) was cloned into pBluescriptSK and expressed in Escherichia coli K - 12 , which does not contain lpxO .
 GENE: S . typhimurium aspartyl / asparaginyl beta - hydroxylase homologue; GENE: lpxO; GENE: lpxO
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: S . typhimurium aspartyl / asparaginyl beta - hydroxylase homologue; GENE: lpxO; GENE: lpxO