Nucleic Acids Research, 1983, Vol. 11, No. 20 7105-7116
© 1983
MOLECULAR BIOLOGY |
The adenovirus-2 EIIa eariy gene promoter: sequences required for efficient in vitro and in vivo transcription
Laboratoire de Génétique Moléculaire des Eucaryotes du CNRS, Unité 184 de Biologie Moléculaire et de Génie Génétique de 1'INSERM, Faculté de Médecine 11 Rue Humann, 67085 Strasbourg Cedex, France
*To whom correspondence should be addressed
Received September 5, 1983. Accepted September 27, 1983.
A series of deletion mutants extending from 250 toward the capsite has been constructed in the early promoter region of the adenovirus 2 EIIa gene and tested both in vitro and in vivo after transfection of HeLa cells, for the ability to act as a template for transcription. A region between positions 94 and 63 upstream from the major EIIa early cap site is essential both in vivo and in vitro for efficient promoter function. By cotransfection of the EIIa deletion mutants with the Ela transcription unit it has been possible to demonstrate that deletion to position 94 does not affect induction of transcription of the EIIa early gene by the EIa transcription unit, but deletion to position 63 results in loss of detectable levels of EIIa early specific RNA. Thus, sequences upstream from position 94 of the EIIa early gene are not involved in the induction of the EIIa early gene by the EIa transcription unit.
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