Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Sequence specific thermodynamic and structural properties for DNA.RNA duplexes

L Ratmeyer1, R Vinayak, Y Y Zhong

  • 1Department of Chemistry, Georgia State University, Atlanta 30303.

Biochemistry
|May 3, 1994
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Warming and salinity changes of the upper ocean Caribbean through-flow since 1960.

Scientific reports·2025
Same author

Priority list of potential endocrine-disrupting chemicals in food chemical contaminants: a docking study and in vitro/epidemiological evidence integration.

SAR and QSAR in environmental research·2023
Same author

A Comparative Study in the Management of Chronic Rhinosinusitis by Nasal Douching with Hypertonic Saline vs Isotonic Saline.

Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India·2022
Same author

[Characteristics of executive function in children with attention deficit/hyperactivity disorder comorbid with high functioning autism].

Zhonghua yi xue za zhi·2020
Same author

Comparative Study Between Endoscopic Sinus Surgery Using Microdebrider and Conventional Techniques with It's Impact on Pulmonary Function Tests: A Randomized Control Trial.

Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India·2019
Same author

Quality of Life in Patients with Nasal Septal Deviation After Septal Correction.

Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India·2019
Same journal

Aromatic Cage-Directed Azide-Methyllysine Photochemistry for Profiling Nonhistone Interacting Partners of the MeCP2 Methyl-CpG-Binding Domain.

Biochemistry·2026
Same journal

Differential Hydroxypyruvate Processing by <i>E. coli</i> and <i>P. aeruginosa</i> DXP Synthases Reveals Preferential Xylulose 5-Phosphate Formation by the <i>P. aeruginosa</i> Enzyme.

Biochemistry·2026
Same journal

Structural and Functional Characterization of Heterologous Nitrogenase Complexes.

Biochemistry·2026
Same journal

Discovery of Bacterial Unspecific Peroxygenases.

Biochemistry·2026
Same journal

Lactate Biology: Subcellular Routing and Chemical Form Define Function.

Biochemistry·2026
Same journal

Nature's Anaerobic Toolkit: Glycyl Radical Enzymes and Their Expanding Functional and Mechanistic Diversity.

Biochemistry·2026
See all related articles

DNA.RNA hybrid duplexes are crucial for biological processes and disease treatments like antisense therapy. Their sequence-dependent structure and stability were evaluated, revealing significant variations in homopurine/homopyrimidine systems compared to mixed sequences.

Area of Science:

  • Molecular Biology
  • Biophysics
  • Biochemistry

Background:

  • DNA.RNA hybrid duplexes play vital roles in biological processes.
  • These hybrids are implicated in therapeutic strategies, including antisense therapy.
  • Understanding their sequence-dependent structure and stability is crucial but limited.

Purpose of the Study:

  • To evaluate the structure and thermodynamic stability of DNA.RNA hybrid model systems.
  • To compare these hybrids with pure RNA and DNA duplexes.
  • To investigate the impact of base composition (all purine/pyrimidine vs. mixed) on hybrid properties.

Main Methods:

  • Thermal melting analysis
  • Circular Dichroism (CD) spectroscopy
  • Electrophoresis analysis

Related Experiment Videos

Main Results:

  • Homopurine.homopyrimidine systems showed a wide variation in free energies of denaturation (>14 kcal/mol).
  • Mixed sequence hybrids exhibited a narrower range of free energy variation (<4 kcal/mol).
  • RNA-rich hybrids resembled pure RNA duplexes, DNA-rich hybrids resembled pure DNA duplexes, and mixed hybrids showed intermediate properties.

Conclusions:

  • Sequence composition significantly influences DNA.RNA hybrid structure and stability.
  • Hybrid duplexes with more RNA purine bases are predicted to adopt an A-form conformation and exhibit greater stability.