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- W2050456259 abstract "The vaccinia virus protein K3L subverts the mammalian antiviral defense mechanism by inhibiting the RNA-dependent protein kinase PKR. K3L is a structural mimic of PKR's natural substrate, the translation initiation factor eIF2α. To further our understanding of K3L inhibitory function and PKR substrate recognition, we have solved the 1.8 Å X-ray crystal structure of K3L. The structure consists of a five-strand β barrel with an intervening helix insert region similar in topology to the functionally divergent S1 domain. Mutational analysis identifies two proximal regions of the K3L structure as possessing specialized PKR binding and inhibitory function. Further analysis reveals that PKR dimerization composes a key switch that regulates both its catalytic activation and its molecular recognition of K3L and eIF2α." @default.
- W2050456259 created "2016-06-24" @default.
- W2050456259 creator A5033817692 @default.
- W2050456259 creator A5064288188 @default.
- W2050456259 date "2002-08-01" @default.
- W2050456259 modified "2023-10-03" @default.
- W2050456259 title "X-Ray Crystal Structure and Functional Analysis of Vaccinia Virus K3L Reveals Molecular Determinants for PKR Subversion and Substrate Recognition" @default.
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- W2050456259 doi "https://doi.org/10.1016/s1097-2765(02)00590-7" @default.
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