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

Analysis of PDE6 function using chimeric PDE5/6 catalytic domains.

Hakim Muradov1, Kimberly K Boyd, Nikolai O Artemyev

  • 1Department of Physiology and Biophysics, University of Iowa College of Medicine, Iowa City, IA 52242, USA.

Vision Research
|November 1, 2005
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

Structural analysis of <i>de novo</i> designed binders targeting the closed state of HSP90.

bioRxiv : the preprint server for biology·2026
Same author

Structural basis of phosphodiesterase-5 conformational organization revealed by a PDE6/PDE5 chimera.

The Journal of biological chemistry·2026
Same author

Inhibition of Unc119b improves insulin sensitivity through potentiation of Rac1 activation in skeletal muscle and brown adipose tissue.

Molecular metabolism·2025
Same author

Structural and functional dynamics of human cone cGMP-phosphodiesterase important for photopic vision.

Proceedings of the National Academy of Sciences of the United States of America·2024
Same author

Molecular basis of CRX/DNA recognition and stoichiometry at the Ret4 response element.

Structure (London, England : 1993)·2024
Same author

Reconstitution of the phosphodiesterase 6 maturation process important for photoreceptor cell function.

The Journal of biological chemistry·2023

Researchers created a bacterial system to study PDE6 enzymes, crucial for vision. This system enables understanding enzyme structure and function, advancing phototransduction research.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Vision Science

Background:

  • Cyclic GMP-phosphodiesterases (PDE6) are vital for phototransduction in retinal photoreceptor cells.
  • A lack of in vitro expression systems hinders research into PDE6 structure-function relationships.

Purpose of the Study:

  • To develop a functional in vitro system for studying PDE6 enzymes.
  • To investigate the structural elements responsible for PDE6 activity and regulation.

Main Methods:

  • Generation and characterization of bacterially expressed chimeric PDE5/6 catalytic domains.
  • Analysis of catalytic activity, solubility, and inhibition by the PDE6 Pgamma subunit.
  • Site-directed mutagenesis to identify key PDE6 structural features (H and M loops).

Related Experiment Videos

Main Results:

  • Chimeric PDE5/6 domains were soluble, active, and inhibited by Pgamma.
  • Specific PDE6 loops (H and M) conferred PDE6-like properties to chimeric domains.
  • Identified PDE6 segments that impede functional expression, suggesting a need for photoreceptor chaperones.

Conclusions:

  • Bacterial expression of chimeric PDE5/6 domains provides a viable system for studying PDE6.
  • The H and M loops are critical determinants of PDE6 catalytic activity and Pgamma sensitivity.
  • Understanding PDE6 folding in vivo may require considering specialized photoreceptor chaperones.