The human DNA-dependent activator of IFN-regulatory factor (DAI) protein, which activates the innate immune response in response to DNA, contains two tandem Z-DNA binding domains (Zα and Zβ) at the NH<SUB>2</SUB> terminus. The h...
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https://www.riss.kr/link?id=A107570298
2011
-
SCOPUS,SCIE
학술저널
772-778(7쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
The human DNA-dependent activator of IFN-regulatory factor (DAI) protein, which activates the innate immune response in response to DNA, contains two tandem Z-DNA binding domains (Zα and Zβ) at the NH<SUB>2</SUB> terminus. The h...
The human DNA-dependent activator of IFN-regulatory factor (DAI) protein, which activates the innate immune response in response to DNA, contains two tandem Z-DNA binding domains (Zα and Zβ) at the NH<SUB>2</SUB> terminus. The hZβ<SUB>DAI</SUB> structure is similar to other Z-DNA binding proteins, although it demonstrates an unusual Z-DNA recognition. We performed NMR experiments on complexes of hZβ<SUB>DAI</SUB> with DNA duplex, d(CGCGCG)<SUB>2</SUB>, at a variety of protein-to-DNA molar ratios. The results suggest that hZβ<SUB>DAI</SUB> binds to Z-DNA via an active-di B-Z transition mechanism, where two hZβ<SUB>DAI</SUB> proteins bind to B-DNA to form the hZβ<SUB>DAI</SUB>-B-DNA complex; the B-DNA is subsequently converted to left-handed Z-DNA. This novel mechanism of DNA binding and B-Z conversion is distinct from Z-DNA binding of the human ADAR1 protein.
Increase in CIP2A expression is associated with doxorubicin resistance