Abstract:
:The products of the human hepatitis B virus (HBV) and woodchuck hepatitis B virus X genes (pXs) transactivate homologous and heterologous genes including the HBV-X and core promoters, the human immunodeficiency viruses 1 (HIV-1) and 2 (HIV-2) long terminal repeats and the beta interferon regulatory sequences. We report here that pX is also able to influence the expression of both extrachromosomal transfected c-myc regulatory sequences and endogenous c-myc gene. pX acts by increasing transcription of the c-myc gene and do not affect c-myc mRNAs stability. The presence of the first AUG of the X-ORFs is indeed necessary for the production of an active pX. The very carboxyterminus of the pX protein is dispensable for this transactivating activity and at least one domain important for its action is located between aminoacids 103 and 117.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Balsano C,Avantaggiati ML,Natoli G,De Marzio E,Will H,Perricaudet M,Levrero Mdoi
10.1016/0006-291x(91)90379-lsubject
Has Abstractpub_date
1991-05-15 00:00:00pages
985-92issue
3eissn
0006-291Xissn
1090-2104pii
0006-291X(91)90379-Ljournal_volume
176pub_type
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