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To determine whether vanadate could inhibit PEPCK gene transcription , a series of chimeric genes containing several deletions in the P - enolypyruvate carboxykinase promoter between - 550 and - 68 was linked to the structural genes for either amino - 3 - glycosyl phosphotransferase ( neo ) or chloramphenicol acetyltransferase and introduced into hepatoma cells using three methods : ( a ) infection with a Moloney murine leukemia virus - based retrovirus , ( b ) transfection and stable selection for neo expression , or ( c ) transient expression of chloroamphenicol acetyltransferase .
 GENE: PEPCK gene; GENE: P - enolypyruvate carboxykinase promoter; GENE: amino - 3 - glycosyl phosphotransferase; GENE: neo; GENE: chloramphenicol acetyltransferase; GENE: neo; GENE: chloroamphenicol acetyltransferase
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: PEPCK gene; GENE: P - enolypyruvate carboxykinase promoter; GENE: amino - 3 - glycosyl phosphotransferase; GENE: neo; GENE: chloramphenicol acetyltransferase; GENE: neo; GENE: chloroamphenicol acetyltransferase