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Impact of loop length and duplex extensions on the design of hybrid-type G-quadruplexes. | LitMetric

Impact of loop length and duplex extensions on the design of hybrid-type G-quadruplexes.

Chem Commun (Camb)

Institut für Biochemie, Universität Greifswald, Felix-Hausdorff Str. 4, Greifswald D-17489, Germany.

Published: January 2024

AI Article Synopsis

  • A G-rich core sequence can form various structures, including parallel G-quadruplexes and a unique hybrid topology with specific loop arrangements.
  • The formation of these structures depends on the presence of thymidine sequences and other complementary DNA segments nearby.
  • Understanding these favored folds provides insight into the complex behavior of G-quadruplexes in biological systems.

Article Abstract

A G-rich core sequence G-TCA-G-T-G-T-G can be designed to fold into a parallel or into two different (3+1) hybrid-type G-quadruplexes, among them an elusive topology with one lateral followed by two propeller loops. Favored folds can be rationalized based on the number of intervening thymidines and on additional complementary flanking sequences.

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Source
http://dx.doi.org/10.1039/d3cc05625bDOI Listing

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