4859
Two genes ( ptsI and ptsA ) that encode homologues of the energy coupling Enzyme I of the phosphoenolpyruvate - dependent sugar - transporting phosphotransferase system ( PTS ) have previously been identified on the Escherichia coli chromosome .
 GENE: ptsI; GENE: ptsA; GENE: Enzyme I; GENE: phosphoenolpyruvate - dependent sugar - transporting phosphotransferase
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: ptsI; GENE: ptsA; GENE: Enzyme I; GENE: phosphoenolpyruvate - dependent sugar - transporting phosphotransferase