SS-31: A Mitochondrial Research Overview
All information here is for laboratory and educational research only. No compound referenced is approved for human or veterinary use, and nothing here is medical advice.
SS-31 (also known as elamipretide) is a synthetic tetrapeptide studied for its interaction with the inner mitochondrial membrane. All information here is for laboratory and educational research only. No compound referenced is approved for human or veterinary use, and nothing here is medical advice. This overview summarizes how researchers study SS-31 and cardiolipin biology, the current research stage, and handling considerations relevant to laboratory work.
What SS-31 Is
SS-31 is a member of the Szeto-Schiller family of small, cell-permeable aromatic-cationic peptides. In published research it is characterized as a mitochondria-targeting compound that concentrates at the inner mitochondrial membrane. Researchers study it primarily as a tool for probing mitochondrial membrane organization rather than as a finished product. Its identity as elamipretide reflects the name used in formal investigational settings.
Mechanism and What Research Explores
The central theme in SS-31 research is its association with cardiolipin, an anionic phospholipid found on the inner mitochondrial membrane that helps shape the cristae folds where ATP synthesis machinery resides. Studies have examined how SS-31 binds cardiolipin with high affinity and how that interaction relates to cristae membrane structure and electron-transport organization. Researchers also study the broader protein-interaction landscape around SS-31, since many cardiolipin-binding proteins are involved in oxidative phosphorylation and related metabolic pathways. These investigations treat SS-31 as a probe for understanding mitochondrial energetics, not as an endorsed intervention.
Research Stage and Limitations
Much of the SS-31 literature is preclinical, drawing on isolated mitochondria, cell models, and animal studies. Findings from these models do not transfer directly to any conclusion about human or veterinary outcomes, and mechanistic results in one tissue context may not generalize. Variability in assay design, model systems, and measurement methods means the body of evidence should be read as an evolving research picture. Some community discussion exists online; any such mention should be treated as unverified anecdotal reports, not controlled findings, and BioRegen does not make or endorse any claims based on them.
Handling Notes for Laboratory Settings
As a peptide, SS-31 reference material is generally handled under standard laboratory practice for lyophilized peptides: cold storage of unopened vials, careful reconstitution with an appropriate solvent, and protection from repeated freeze-thaw cycles. Documentation of lot, concentration, and storage conditions supports reproducible research. For general background on preparing peptide reference material in a laboratory context, see our guide on how to reconstitute peptides. These notes describe laboratory handling only and are not instructions for any use in humans or animals.
Frequently Asked Questions
What does SS-31 target at the molecular level?
In published research, SS-31 is described as concentrating at the inner mitochondrial membrane and binding cardiolipin, a phospholipid central to cristae structure. Researchers study this interaction to better understand mitochondrial membrane organization.
Is SS-31 the same as elamipretide?
Yes. SS-31 is the laboratory designation for the same tetrapeptide referred to as elamipretide in investigational literature. The naming reflects different research contexts for the identical compound.
How established is the research?
The evidence base is largely preclinical and mechanistic. It informs how researchers think about mitochondrial biology but does not support claims about treating, curing, or preventing any condition.
Continue Your Research
To plan a study around mitochondrial-targeting compounds, explore our research guide and use code RESEARCH10 for 10% off your first order. You can compare related laboratory reference materials with our research finder, and browse current options in the Energize research category.
Selected research references
- Birk AV, et al. The mitochondrial-targeted compound SS-31 re-energizes ischemic mitochondria by interacting with cardiolipin. J Am Soc Nephrol. 2013. https://doi.org/10.1681/ASN.2012121216
- Chavez JD, et al. Mitochondrial protein interaction landscape of SS-31. Proc Natl Acad Sci U S A. 2020. https://doi.org/10.1073/pnas.2002250117
Reference metadata sourced via PubMed.
This article is provided strictly for laboratory and educational research purposes. No compound discussed is approved for human or veterinary use, and nothing here constitutes medical advice or a claim to diagnose, treat, cure, or prevent any disease.