DNA sequence of the leftward junction in the adenovirus-simian virus 40 hybrid Ad2+D2 and determination of the structure of the D2-T antigen.

The nucleotide sequence of the junction between the simian virus 40 early region and the adenovirus type 2 late region L4 in the hybrid virus Ad2+D2 was determined. The deduced amino acid sequence suggests that the D2-T antigen is a chimeric protein sharing 594 amino acids with the C-terminal end of the simian virus 40 T antigen and 104 amino acids with the N terminus of the adenovirus type 2 33,000-molecular-weight protein. The predicted structure of the D2-T antigen was confirmed by an immunoprecipitation analysis.