Description
Product Overview
IGF-1 LR3, also known as Long R3 IGF-I, is an engineered insulin-like growth factor-I analogue supplied for laboratory research use only.
Published scientific literature has investigated Long R3 IGF-I in relation to IGF-I receptor biology, IGF-binding protein interactions and cell-culture research models.
Technical Specifications
- Product Name: IGF-1 LR3
- Product Type: Engineered Long R3 IGF-I Analogue
- Amount: 1 mg
- Form: Lyophilized Powder
- Purity: ≥99%
- Storage: 2–8°C
- Batch Testing: Batch-Specific COA Available
- Intended Use: Research Use Only
Batch Verification
Each batch is linked to a batch-specific Certificate of Analysis (COA).
Available documentation may include purity testing, identity verification, and batch-related analytical data.
Selected Scientific References
King R, Wells JRE, Krieg P, Snoswell M, Brazier J, Bagley CJ, Wallace JC, Ballard FJ, Ross M, Francis GL.
Production and characterization of recombinant insulin-like growth factor-I (IGF-I) and potent analogues of IGF-I, with Gly or Arg substituted for Glu3, following their expression in Escherichia coli as fusion proteins.
Journal of Molecular Endocrinology. 1992;8(1):29–41.
PMID: 1311930
DOI: 10.1677/jme.0.0080029
Francis GL, Ross M, Ballard FJ, Milner SJ, Senn C, McNeil KA, Wallace JC, King R, Wells JRE.
Novel recombinant fusion protein analogues of insulin-like growth factor (IGF)-I indicate the relative importance of IGF-binding protein and receptor binding for enhanced biological potency.
Journal of Molecular Endocrinology. 1992;8(3):213–223.
PMID: 1378742
DOI: 10.1677/jme.0.0080213
Bryant KJ, Read LC, Forsberg G, Wallace JC.
Design and characterisation of long-R3-insulin-like growth factor-I muteins which show resistance to pepsin digestion.
Growth Factors. 1996;13(3–4):261–272.
PMID: 8919033
DOI: 10.3109/08977199609003227
Voorhamme D, Yandell CA.
LONG R3IGF-I as a more potent alternative to insulin in serum-free culture of HEK293 cells.
Molecular Biotechnology. 2006;34(2):201–204.
PMID: 17172665
DOI: 10.1385/MB:34:2:201
Research Profile
- Product Name: IGF-1 LR3
- Product Type: Engineered Long R3 IGF-I Analogue
- Amount: 1 mg
- Form: Lyophilized Powder
- Purity: ≥99%
- Storage: 2–8°C
- Batch Testing: Batch-Specific COA Available
- Intended Use: Research Use Only
Scope of Use
This product is supplied strictly for laboratory research purposes.
It is not intended for human use, veterinary use, diagnostic applications, or therapeutic and clinical applications.
True Peptides does not provide dosing guidance, administration instructions, or usage recommendations.




