recombinant protein

IGF-1 LR3

A long-arginine-3 analogue of insulin-like growth factor 1.

IGF-1 LR3 · 1 mg · Lyophilised vial

recombinant protein

IGF-1 LR3

A long-arginine-3 analogue of insulin-like growth factor 1.

€ 75.00per vial, EUR

In stock

Presentation1 option

1 mg · Lyophilised vial€ 75.00

Lyophilised powder in a sealed glass vial

Storage: -20 °C for long-term storage; 2 to 8 °C for under three months; away from light

Tracked shipping EUR 9.95 per order. Benelux 1 to 2 business days, Germany and France 2 to 3, rest of Europe 3 to 5. Details

Batch certificate: not yet published online. Request one for this presentation.

Research use only. Not for human or veterinary use.

What it is

IGF-1 LR3 is a recombinant 83-amino-acid analogue of IGF-1 with an arginine substitution at position 3 and a 13-amino-acid N-terminal extension. The changes reduce binding to IGF-binding proteins, which is why it is used in cell-culture work where sustained IGF-1 receptor activity is wanted.

Where it has been studied

Cell proliferation and survival assays
Muscle cell and myotube cultures
IGF-1 receptor signalling

Selected literature

Recombinant expression of IGF-1 and LR3 IGF-1 fused with xylanase in Pichia pastorisLu Z et al. · Appl Microbiol Biotechnol, 2023 · PMID 37261455
Intranasal long R3 insulin-like growth factor-1 treatment promotes amyloid plaque remodeling in cerebral cortex but fails to preserve cognitive function in male 5XFAD miceEngel MG et al. · J Alzheimers Dis, 2025 · PMID 39610283
Action of long(R3)-insulin-like growth factor-1 on protein metabolism in beef heifersHill RA et al. · Domest Anim Endocrinol, 1999 · PMID 10370861

PubMed records selected for relevance to the compound. They describe published research, not outcomes or uses.

Specifications

Compound	IGF-1 LR3
Type	Recombinant protein
Selected presentation	1 mg · Lyophilised vial
Form	Lyophilised powder in a sealed glass vial
Fill volume and concentration	Not applicable (lyophilised)
Label	CELVIVE wordmark, compound name, amount, "Purity: >99%", "For research use only"
Storage	-20 °C for long-term storage; 2 to 8 °C for under three months; away from light
Certificate of analysis	Not yet published online. Request for a batch
Research areas	Recovery & tissue research, Growth hormone axis
All presentations	1 mg lyophilised vial · € 75.00

Handling

Lyophilised peptides tolerate room temperature for several weeks in transit. Move to cold storage on receipt.
Reconstituted vials are typically used within three to four weeks at 2 to 8 °C; stability varies by compound.
Opened or unsealed vials cannot be returned. Transit damage must be documented within 24 hours.

Storage and stability FAQ