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Compound guide

SS-31

From cellular signaling to what those pathways mean in everyday language.

Overview

A Summary:SS-31

SS-31, also called elamipretide, is a short mitochondria-targeting tetrapeptide studied for its interaction with cardiolipin in the inner mitochondrial membrane.

SS-31, also called elamipretide, is a short peptide designed to concentrate around the inner membrane of mitochondria. Its main molecular interaction is with cardiolipin, a lipid that helps organize the machinery used to make ATP.

Inside the body

Cellular & MolecularHow SS-31 Functions

These receptors, enzymes, and signaling networks form the primary steps connecting this compound with changes inside cells and tissues.

01Mitochondrial targeting

Cardiolipin membrane binding

At the cellular or molecular level

SS-31 associates with cardiolipin, a negatively charged phospholipid concentrated in the inner mitochondrial membrane. Cardiolipin helps organize membrane shape and respiratory proteins.

02Respiratory efficiency

Electron-transport organization

At the cellular or molecular level

Preclinical work suggests cardiolipin interactions can support cristae structure and the arrangement of electron-transport proteins, including the relationship between cardiolipin and cytochrome c.

03Oxidative-stress response

Redox balance

At the cellular or molecular level

By influencing membrane and electron-transport behavior, SS-31 is proposed to reduce excessive reactive-oxygen-species formation and downstream oxidative damage in stressed cells.

In plain English

What those pathways mean.

01

Mitochondrial targeting

Stabilizing that environment could support stressed mitochondria without directly creating energy on its own.

02

Respiratory efficiency

A more organized respiratory chain could make ATP production more efficient and limit electron leak.

03

Oxidative-stress response

This explains interest in fatigue, muscle function, and age-related mitochondrial decline.

How the signals work together

By interacting with cardiolipin, SS-31 can help organize the membrane environment around the electron-transport chain. The goal of that system is steadier electron flow, more efficient ATP production, and less electron leakage that can create oxidative stress.

Read the evidence

Sources BehindThis Guide

Elamipretide mechanism reviewMMPOWER-3 randomized clinical trialElamipretide (SS-31) identity record

One important note

Educational Notice

SS-31 has been tested in human mitochondrial-disease trials. Early studies reported selected signals, while the larger MMPOWER-3 trial did not improve its primary walking-distance or fatigue endpoints.

This guide explains cellular mechanisms and published outcomes in everyday language. It is educational information, not medical advice or instructions for personal use. Products offered on this site are intended exclusively for laboratory research and are not for human or veterinary use.