Strand-specific recognition of a synthetic DNA replication fork by the SV40 large tumor antigen.

Abstract

The mechanism by which DNA helicases unwind DNA was tested; an "unwinding complex" between the SV40 large tumor antigen (T antigen) and a DNA molecule designed to resemble a replication fork was probed. In an adenosine triphosphate (ATP)-dependent reaction, T antigen quantitatively recognized this synthetic replication fork and bound the DNA primarily as a… (More)

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