Abstract

Cell-free translation of adenovirus messenger RNA is the most direct approach towards establishing molecular correlates for individual virus gene functions. The genetic complexity of adenovirus type 2 is comparable to that of bacteriophage T7, which is known (Studier 1972) to code for about 30 proteins. Candidates for roughly one-half of this number of polypeptides have been found in extracts of virus-infected cells or purified virions (Maizel et al. 1968; Everitt et al. 1973; Anderson et al. 1973; Walter and Maizel 1974). Several of these are well-characterized structural elements of the virion particle. We will show here that they are encoded in distinct viral messenger RNA species, some of which may harbor the message for more than one virion polypeptide.

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