Available option
1mg
Lyophilised powder
- Strength
- 1mg
- Format
- Lyophilised powder
Bear Biotech catalogue
IGF-1 LR3
Long-Arg3 insulin-like growth factor analogue research material
- IGF receptor
- Binding proteins
- Growth signalling
Available presentations
Choose a strength and format
Each available presentation is listed separately. Current prices are confirmed from the Bear Biotech catalogue.
Research overview
What is IGF-1 LR3?
IGF-1 LR3 is a modified insulin-like growth factor analogue designed for prolonged activity in laboratory systems. It is widely used as a research tool for IGF-receptor signalling, cell growth, differentiation and metabolic pathways. Most evidence relates to laboratory and animal models rather than approved human use.
Primarily laboratory and animal research tool
Research focus
Key research areas
IGF-1 LR3 research: extended IGF receptor signalling
IGF-1 LR3 is an engineered insulin-like-growth-factor-I analogue with an arginine substitution and N-terminal extension. It is used mainly as a laboratory research tool. Published findings concern defined experimental materials and do not establish the identity, quality, safety, efficacy or equivalence of Bear Biotech catalogue material.
- IGF receptor
- Binding proteins
- Growth signalling
Representative primary research
Representative research
An animal study compared long R3 IGF-I with recombinant IGF-I and IGF-II.
- Long R3 IGF-I infusion stimulates organ growth but reduces plasma IGF and binding-protein concentrations ↗ Original guinea-pig research on the exact analogue.
These sources provide research context only. They do not verify the identity, quality or equivalence of a Bear Biotech catalogue batch; the matched lot-specific batch record remains controlling.
Specifications
Product information
- Material identity
- IGF-1 LR3
- Research category
- Long-Arg3 insulin-like growth factor analogue research material
- Evidence position
- Primarily laboratory and animal research tool
- Recorded formats
- Lyophilised powder
- Batch-record basis
- The matched lot-specific record controls identity and analytical claims.
- Intended use
- Controlled laboratory research only.
Research questions
Evidence and identity questions
How does the modified IGF-1 LR3 sequence differ from native IGF-1?
IGF-1 LR3 is used as a laboratory research tool for IGF-receptor signalling and altered binding-protein interactions. Its modified sequence distinguishes it from native IGF-1.
Which receptor and binding-protein questions are studied with IGF-1 LR3?
Growth-signalling experiments assess receptor and downstream cellular endpoints in defined laboratory or animal systems. They do not establish a human growth outcome.
Why is IGF-1 LR3 evidence largely confined to laboratory and animal models?
IGF-1 LR3 evidence is primarily laboratory and animal research. Material identity and model conditions are essential to interpretation.
Batch documentation
Lot-specific records stay connected to the order
Eligible lot-specific documentation may be viewed or requested from the registered Bear Biotech account when available for the applicable order.
Open Bear Biotech accountResearch use only
Controlled laboratory research material
Not for human or veterinary consumption. Administration, dosing and therapeutic guidance are not provided.