Growth axis
IGF-1 LR3
Long R3 IGF-I / LR3 IGF-1
- Peptide length
- 83 amino acids
N-terminally extended protein analog
Research contextPredominantly preclinical
Read the linked studies for their methods and limitations.
A modified IGF-I analog used in experimental growth-factor research, with altered interactions relative to native IGF-I.
- Family
- IGF-I analog
- Research frame
- IGF-1 receptor pathway
- Molecular format
- N-terminally extended protein analog
Read the evidence
Laboratory growth and binding results are not human performance evidence. Mecasermin product evidence cannot be assigned to LR3.
Resolve the identity
Confirm the N-terminal extension and Arg substitution. LR3, native IGF-I and des(1–3)IGF-I have distinct structures.