Domains required for in vitro association between the cellular p53 and the adenovirus 2 E1B 55K proteins - PubMed (original) (raw)
Domains required for in vitro association between the cellular p53 and the adenovirus 2 E1B 55K proteins
C C Kao et al. Virology. 1990 Dec.
Abstract
The 55K protein encoded by the adenovirus 2 E1B gene is required for complete cellular transformation and binds the cellular protein p53. Using an in vitro immunoprecipitation assay, we mapped the domains in both 55K and p53 required for the interaction of the two proteins. The domain in p53 mapped to the amino terminal 123 residues. There are several domains in the 495 residue 55K polypeptide which contribute to stable association with p53, with the most essential region mapping between residues 224 and 354. Mutations which prevented 55K-p53 binding were not more defective for transformation than other mutations which did not affect binding.
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