Dual mode of IFI16 binding to supercoiled and linear DNA: A closer insight

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081707%3A_____%2F23%3A00574524" target="_blank" >RIV/68081707:_____/23:00574524 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14310/23:00131002 RIV/00216305:26310/23:PU149606 RIV/00209805:_____/23:00079309
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0006291X23006125?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0006291X23006125?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.bbrc.2023.05.049" target="_blank" >10.1016/j.bbrc.2023.05.049</a>

Result language
angličtina
Original language name
Dual mode of IFI16 binding to supercoiled and linear DNA: A closer insight
Original language description
IFI16 (Interferon inducible protein 16) is a DNA sensor responsible for innate immune response stimu-lation and a direct viral restriction by modulating gene expression and replication. Many IFI16-DNA binding properties were describedlength-dependent and sequence-independent binding, oligomeri-zation of IFI16 upon recognition, sliding on the DNA, and preference for supercoiled DNA. However, the question of the role of IFI16-DNA binding in distinct IFI16 functions remains unclear. Here we demon-strate two modes of IFI16 binding to DNA using atomic force microscopy and electrophoretic mobility shift assays. In our study, we show that IFI16 can bind to DNA in the form of globular complexes or oligomers depending on DNA topology and molar ratios. The stability of the complexes is different in higher salt concentrations. In addition, we observed no preferential binding with the HIN-A or HIN-B domains to supercoiled DNA, revealing the importance of the whole protein for this specificity. These results provide more profound insight into IFI16-DNA interactions and may be important in answering the question of self-and non-self-DNA binding by the IFI16 protein and potentially could shed light on the role of DNA binding in distinct IFI16 functions.(c) 2023 Elsevier Inc. All rights reserved.
Czech name
—
Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10608 - Biochemistry and molecular biology

Project
<a href="/en/project/GA22-21903S" target="_blank" >GA22-21903S: Local DNA structures and their role in mutant p53 protein function in human tumours</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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