IGF1-LR3 1mg

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IGF1-LR3 Research Peptide (1mg Lyophilized Powder) | igf lr3 for sale

Notice: All products provided by Onyx Labs are strictly intended for laboratory research and analytical testing purposes only. They are not intended for human or animal consumption, diagnostic testing, clinical administration, or therapeutic use.

High-Purity IGF1-LR3 Recombinant Peptide (1mg Content)

IGF1-LR3 (Long Arginine 3 Insulin-like Growth Factor-1) is an 83-amino acid recombinant analog of human IGF-1. Modified by substituting an Arginine for Glutamic Acid at position 3 (E3R) and extending the N-terminus sequence by 13 amino acids, this synthetic variant exhibits significantly altered biochemical properties compared to native IGF-1.

The primary advantage of IGF1-LR3 in scientific research is its drastically reduced binding affinity for IGF Binding Proteins (IGFBPs). While native IGF-1 is quickly bound and inactivated by IGFBPs in serum, IGF1-LR3 remains active in circulation with an extended half-life (~20–30 hours compared to ~20 minutes for native IGF-1). This allows researchers to evaluate sustained receptor activation, satellite cell proliferation, hyperplasia, and nutrient partitioning dynamics in cellular and tissue models over extended periods.

Why Source IGF LR3 For Sale Research Materials at Onyx Labs?

When conducting quantitative assays on satellite cell differentiation or protein synthesis pathways, receiving synthesis-verified sequence profiles and exact batch purity is critical to scientific reproducibility.

Analytical Purity & Testing Standards

Researchers evaluating suppliers offering igf lr3 for sale select Onyx Labs for our unwavering commitment to laboratory transparency. Every batch of IGF1-LR3 undergoes multi-stage quality control testing, including High-Performance Liquid Chromatography (HPLC) and Mass Spectrometry (MS), to confirm a sequence purity rating of ≥98%.

Precision Sequence Integrity & Lyophilization

Due to the complex 83-amino acid tertiary structure of recombinant growth factors, proper folding and tertiary conformation are critical. Our 1mg IGF1-LR3 vials are sterile-filtered, lyophilized into a stable white cake, and vacuum-sealed under strict climate-controlled conditions to preserve peptide stability during transport and storage.

Mechanisms of Action & Receptor Signaling Pathways

IGF1-LR3 operates primarily through high-affinity binding to the Insulin-Like Growth Factor 1 Receptor (IGF-1R):

                   ┌──► IGF-1R Autophosphorylation (Receptor Tyrosine Kinase Activation)
                   │
IGF1-LR3 Analog ───┼──► PI3K / Akt / mTOR Pathway Activation (Protein Synthesis & Hyperplasia)
                   │
                   └──► MAPK / ERK Signaling Cascade (Satellite Cell Proliferation & Differentiation)

1. PI3K / Akt / mTOR Pathway Activation

Upon binding to the IGF-1R, IGF1-LR3 triggers receptor autophosphorylation and activates the PI3K/Akt/mTOR signaling cascade. This pathway serves as the master regulator of protein synthesis, muscle cell hypertrophy, and cellular nutrient uptake.

2. Satellite Cell Proliferation & Hyperplasia

Unlike standard hypertrophic pathways that merely enlarge existing cells, IGF1-LR3 signaling activates dormant satellite cells in muscle tissue assays, promoting myoblast proliferation and fusion to form new muscle fibers (hyperplasia).

3. Glucose & Amino Acid Transport Dynamics

IGF1-LR3 enhances cellular permeability to amino acids and glucose in peripheral tissue models, encouraging nutrient partitioning into muscle cells while downregulating glycogen storage in adipocytes.

Technical Specifications & Storage Guidelines

Parameter	Specification
Product Name	IGF1-LR3 (Long Arginine 3 IGF-1)
Sequence	83-Amino Acid Analog (E3R Substitution + 13 AA N-Terminal Extension)
CAS Number	946870-92-4
Molecular Weight	~9,111.0 g/mol
Purity Grade	≥98% (HPLC & Mass Spec Verified)
Physical Appearance	White Lyophilized Powder
Storage (Unreconstituted)	Store at -20°C (-4°F) in a dark, dry environment. Stable for up to 24 months.
Storage (Reconstituted)	Refrigerate at 2°C – 8°C (36°F – 46°F) in acidic diluent (0.6% acetic acid or BAC water) and utilize within 30 days.

FAQ: Reconstitution & IGF LR3 For Sale Standards

What solvent is recommended for reconstituting IGF1-LR3?

Because long-chain recombinant growth factors can stick to glass surfaces or aggregate in neutral pH water over time, it is standard laboratory practice to reconstitute IGF1-LR3 using 0.6% Acetic Acid or sterile Bacteriostatic Water with an acidic buffer. Direct the liquid slowly along the inner glass wall to prevent aggressive foaming.

How do I access the Certificate of Analysis (CoA) for my order?

When sourcing igf lr3 for sale online, analytical verification is critical. Enter your batch tracking number in the MyOnyx portal or visit our dedicated Lab Results page to view complete Mass Spec and HPLC chromatograms for your specific lot.