Constrained G4 structures unveil topology specificity of known and new G4 binding proteins
نویسندگان
چکیده
منابع مشابه
Anti-HIV Activities of Intramolecular G4 and Non-G4 Oligonucleotides.
New natural and chemically modified DNA aptamers that inhibit HIV-1 activity at submicromolar concentrations (presumably via preventing viral entry into target cells) are reported. The new DNA aptamers were developed based on known intramolecular G-quadruplexes (G4s) that were functionally unrelated to HIV inhibition [the thrombin-binding aptamer and the fragment of the human oncogene promoter ...
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It has been previously shown that the DHX36 gene product, G4R1/RHAU, tightly binds tetramolecular G4-DNA with high affinity and resolves these structures into single strands. Here, we test the ability of G4R1/RHAU to bind and unwind unimolecular G4-DNA. Gel mobility shift assays were used to measure the binding affinity of G4R1/RHAU for unimolecular G4-DNA-formed sequences from the Zic1 gene an...
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i mmunoglobulins, produced by plasma cells, are the effector arm of the humoral immune system [1]. Each immunoglobulin consists of two identical heavy chains (α, β, γ, δ or ε – all encoded by chromosome 14) and two identical light chains (either κ or λ, encoded by chromosome 2 and 22, respectively) [2]. The immunoglobulins have constant (C) regions (similar within the same isotype) and variable...
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conformational differences to the starting model, demonstrating the well-known need for allowing backbone flexibility in the design procedure. More information, however, would have been gained from a structure with bound substrate or transition state analog. Interestingly, both adenosine deaminase and the bacterial phosphotriesterase, which is known to hydrolyze organophosphate triesters with c...
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2021
ISSN: 2045-2322
DOI: 10.1038/s41598-021-92806-8