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Updated: Mar 15, 2026

Inducible and Reversible Dominant-negative DN Protein Inhibition
Published on: January 7, 2019
DNA-binding studies of the natural β-carboline eudistomin U
Jennifer M Giulietti1, Patrick M Tate1, Ang Cai2
1Providence College, Department of Chemistry and Biochemistry, 1 Cunningham Square, Providence, RI 02918, USA.
Abstract:
Eudistomin U is a member of the β-carboline class of heterocyclic amine-containing molecules that are capable of binding to DNA. The structure of eudistomin U is unique since it contains an indole ring at the 1-position of the pyridine ring. While simple β-carbolines are reported to intercalate DNA, an examination of the mode of binding of eudistomin U has been lacking. We report preliminary spectroscopic (UV-Vis, thermal denaturation, CD) and calorimetric (DSC) data on the binding of eudistomin U to DNA, which suggest that eudistomin U binds weakly according to a mechanism that is more complicated than other members of its class.
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