Related Experiment Video
Updated: Jun 8, 2025
08:37
Purification of the Sarco-Endoplasmic Reticulum Ca2+-ATPase from Rabbit Muscle
Published on: March 21, 2025
194
Quinoline- and Pyrimidine-based Allosteric Modulators of the Sarco/Endoplasmic Reticulum Calcium ATPase
Stefan Paula1, Farnaz Jahani1, Dina Almahmodi1
1Department of Chemistry, California State University Sacramento, 6000 J Street, Sacramento, CA, 95819, USA.
Chemmedchem
|November 5, 2024
Summary
New SERCA activators were synthesized to modulate calcium levels. Bulky alkyl groups and quinoline substituents enhanced activity, suggesting a mechanism involving ATP binding.
Area of Science:
- Biochemistry
- Pharmacology
- Molecular Biology
Background:
- Sarco/endoplasmic reticulum calcium ATPase (SERCA) regulates intracellular calcium.
- SERCA dysfunction is linked to various diseases.
- Allosteric activators offer therapeutic potential.
Purpose of the Study:
- Synthesize and characterize novel allosteric SERCA activators.
- Investigate structure-activity relationships of CDN1163 analogs.
- Elucidate the mechanism of SERCA activation.
Main Methods:
- Synthesis of 20 CDN1163 analogs with structural variations.
- In vitro testing of compounds for SERCA activity stimulation.
- Molecular modeling and blind docking studies.
Main Results:
- Identified potent SERCA activators with sub-micromolar potency.
- Achieved >25% increase in SERCA activity.
- Determined that bulky alkyl groups and quinoline moieties enhance activity.
- Discovered a potential binding site near the ATP pocket.
Conclusions:
- Novel small-molecule activators of SERCA were developed.
- Structure-activity relationships guide further optimization.
- Proposed mechanism involves allosteric modulation of ATP binding.
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