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MOTS-c vs SS-31
MOTS-c is a 16-residue peptide encoded in the mitochondrial 12S rRNA gene. SS-31 is a synthetic tetrapeptide (D-Arg-Dmt-Lys-Phe-NH2) that contains the non-standard residue Dmt (2',6'-dimethyltyrosine).
| MOTS-c | SS-31 | |
|---|---|---|
| Also known as | MRWQEMGYIFYPRKLR | Elamipretide, MTP-131 |
| Compound type | Hexadecapeptide · 16 aa | Tetrapeptide · 4 aa |
| Sequence | Met-Arg-Trp-Gln-Glu-Met-Gly-Tyr-Ile-Phe-Tyr-Pro-Arg-Lys-Leu-Arg | D-Arg-Dmt-Lys-Phe-NH2 |
| Molecular formula | C101H152N28O22S2 | C32H49N9O5 |
| Molecular weight | 2174.6 g/mol | 639.8 g/mol |
| CAS number | 1627580-64-6 | 736992-21-5 |
| PubChem CID | 146675088 | — |
| Form | Lyophilized powder | Lyophilized powder |
| Sizes | 10 mg, 20 mg and 40 mg | 10 mg |
| Price | from $59.00 | from $59.00 |
| Lab report | Published on the product page | Not yet (supplier's spec) |
Where they differ
- MOTS-c has 16 residues and SS-31 has 4.
- The C-terminus is a free acid (-OH) in MOTS-c and an amide (-NH2) in SS-31.
- Molecular formulas: MOTS-c C101H152N28O22S2, SS-31 C32H49N9O5.
- Molecular weights: MOTS-c 2174.6 g/mol, SS-31 639.8 g/mol.
Tested 99.3%MOTS-c
Hexadecapeptide · 16 aa
10 mg20 mg40 mg
from $59.00
$2.73/mg at 40 mg
In stock
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SS-31
Tetrapeptide · 4 aa
10 mg
$59.00
$5.90/mg
Ships in 5–7 days
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