This gene encodes a single-stranded DNA-binding protein that is the 30-kDa subunit of the replication protein A complex. Replication protein A is an essential factor for DNA double-strand break repair and cell cycle checkpoint activation. The encoded protein localizes to DNA repair foci and may be involved in the cellular DNA damage response. This protein may also play a role in inhibiting viral replication.[provided by RefSeq, Apr 2010],
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Function:
Function:Absolutely required for simian virus 40 DNA replication in vitro. It participates in a very early step in initiation. RP-A is a single-stranded DNA-binding protein.,subunit:Interacts with RPA1 and RPA3. In a tissue-specic manner, may replace RPA2 in the replication protein A heterotrimer.,tissue specificity:Preferentially expressed in placental and colon mucosa.,
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Cellular Localization:
Nucleus . Localizes to DNA repair foci after DNA damage.
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Tissue Expression:
Preferentially expressed in placental and colon mucosa. Widely expressed at intermediate or lower levels.