9y6e | pdb_00009y6e
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Crystal structure of PprA from Deinococcus radiodurans in complex with DNA duplex
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Structural highlights
FunctionPPRA_DEIRA dsDNA-binding protein that contributes to the ionizing radiation resistance of D.radiodurans. Plays a role in DNA repair and genome reconstitution, and is necessary for recovery from severe genomic fragmentation as a result of exposure to severe levels of ionizing radiation. In vitro, binds to double-stranded DNA carrying strand breaks and stimulates the DNA end-joining reaction catalyzed by DNA ligases. Thus, PprA plays a critical role in a non-homologous end-joining (NHEJ) pathway for the repair of radiation-induced DNA double-strands breaks. Cannot bind to dsDNA without strand breaks or single-stranded DNA.[1] [2] References
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This page was last modified 08:47, 16 September 2026.