Original Research
Copyright ©The Author(s) 1997.
World J Gastroenterol. Mar 15, 1997; 3(1): 9-11
Published online Mar 15, 1997. doi: 10.3748/wjg.v3.i1.9
Figure 3
Figure 3 Structure of pMNP-tk, pMNAP-tkα, pMNAP-tkβ retroviral vectors. LTR: Retroviral long terminal repeat sequence; NeoR: Neomycin phosphotransferase gene (for G418 selection); pgk: Human phosphoglycerokinase promotor; tk: Herpes simplex virus thymidine kinase gene; AFPe: Human α fetoprotein “home keeping” gene enhancer.