Growth axis
IGF-1 DES (1–3)
Des 1-3 IGF-I / IGF-1 DES
- Peptide length
- 67 amino acids
N-terminally truncated protein
Research contextPredominantly preclinical
Read the linked studies for their methods and limitations.
An IGF-I form lacking the first three residues, investigated for altered interactions with IGF-binding proteins.
- Family
- Truncated IGF-I
- Research frame
- IGF-1 receptor pathway
- Molecular format
- N-terminally truncated protein
Read the evidence
The cited work used cell systems and purified binding proteins. It does not establish a safe or effective human anabolic intervention.
Resolve the identity
Confirm the truncation and disulfide structure. This is not LR3 or the approved native IGF-I medicine mecasermin.