Description
IGF-1 LR3 is a long-arginine analogue of insulin-like growth factor 1 with reduced binding-protein affinity, which is why it is a common choice in cell-culture work where free peptide availability matters.
Research context
- Cell proliferation and differentiation assays
- IGF receptor signalling studies
- Culture work where binding-protein interference is a confounder
Handling and storage
Sensitive to repeated temperature cycling – store frozen, thaw once, and keep reconstituted solution refrigerated.
Common questions
Why the LR3 version rather than native IGF-1?
The modification lowers binding-protein affinity, so more of the peptide stays available in culture medium.
Supplied for laboratory research use only. Not for human or veterinary use.
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