We have isolated spontaneous mutants of polyoma virus middle T-antigen (PyMT) that do not activate the ARF-p53 pathway based on their inability to block REF52 cell division. The REF52 cells containing ...
Polyoma virus (Py) differs from other small DNA tumor viruses in not encoding a protein that inactivates p53. The complete Py early region encoding the large T-antigen (PyLT), middle T-antigen (PyMT) ...
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