Description
IGF-1 LR3 – Lyophilized Research Peptide
Overview of IGF-1 LR3
IGF-1 LR3 (Insulin-Like Growth Factor-1 Long Arg3) is a synthetic analog of insulin-like growth factor-1 referenced in peptide chemistry and molecular signaling research literature. In laboratory environments, this peptide is commonly examined in experimental models involving receptor interaction analysis, molecular signaling pathways, and peptide stability research.
IGF-1 LR3 peptide is a modified form of the naturally occurring IGF-1 protein that contains an additional amino acid substitution and extended peptide sequence. Because of its defined molecular structure and reproducible synthesis profile, IGF-1 LR3 is frequently included in controlled research studies evaluating peptide signaling behavior and receptor interaction characteristics.
Scientific Research Context
In biochemical and molecular research environments, IGF-1 LR3 is often referenced in experimental models studying peptide-receptor signaling systems. Laboratory investigations involving this peptide may include:
- Peptide receptor interaction analysis
- Molecular signaling pathway research
- Comparative peptide stability studies
- Structural peptide characterization
- Analytical evaluation of peptide analogs
Presence in Scientific Literature
IGF-1 LR3 appears in scientific publications discussing insulin-like growth factor signaling and peptide molecular structure. In research laboratories it may be used as a reference compound when evaluating peptide-receptor interactions and peptide signaling pathways.
Lyophilized IGF-1 LR3 Preparation
Freeze-Dried Peptide Format
IGF-1 LR3 research compounds are typically supplied in a lyophilized (freeze-dried) format. Lyophilization removes solvent under controlled vacuum and temperature conditions, producing a stable dry peptide preparation suitable for laboratory storage and transport.
Visual Characteristics
Depending on manufacturing and freeze-drying conditions, lyophilized IGF-1 LR3 may appear as:
- Fine white peptide powder
- Porous lyophilized cake
- Compact peptide layer adhered to the vial surface
Minor visual differences between vials are normal and typically reflect variations in lyophilization parameters during production.
Chemical Characteristics of IGF-1 LR3
Key Molecular Attributes
- Compound Type: Synthetic peptide analog
- Peptide Class: Insulin-like growth factor analog
- Peptide Length: 83 amino acids
- Molecular Weight: ~9200 g/mol
- Modification: Arg3 substitution and extended peptide sequence
- CAS Number: 946870-92-4
- Appearance: White lyophilized peptide preparation
Formulation Stability
Laboratory preparations of IGF-1 LR3 may contain stabilizing excipients designed to maintain peptide integrity during storage and lyophilization. These stabilizers are commonly used in synthetic peptide manufacturing and research reagent preparation.
Reconstitution Characteristics
Dissolution Behavior in Laboratory Settings
When reconstituting lyophilized IGF-1 LR3 peptide for laboratory use, solvent composition may influence dissolution characteristics and experimental consistency.
Solvent Considerations
Solvents containing preservatives or buffering agents may interact with peptide formulation components. For controlled laboratory preparation, purified laboratory-grade water is commonly used when dissolving peptide compounds.
IGF-1 LR3 in Laboratory Research
IGF-1 LR3 has been referenced in scientific literature involving insulin-like growth factor signaling systems and peptide receptor interaction research. In controlled laboratory environments, the peptide may be included in research models examining:
- Peptide receptor binding characteristics
- Molecular signaling pathway modeling
- Comparative peptide stability studies
- Structural peptide analysis
- Analytical characterization of growth factor analogs
Storage & Handling
Recommended Storage Conditions
- Store refrigerated at 2–8°C unless otherwise specified
- Protect peptide material from moisture and excessive light
- Keep vials sealed until laboratory use
- Avoid repeated freeze-thaw cycles after reconstitution
Laboratory Handling Practices
IGF-1 LR3 peptide should be handled using appropriate sterile laboratory techniques and standard research protocols to maintain sample integrity and experimental reliability.
Frequently Asked Questions About IGF-1 LR3
What is IGF-1 LR3?
IGF-1 LR3 is a modified analog of insulin-like growth factor-1 that contains structural modifications referenced in peptide signaling research.
How is IGF-1 LR3 supplied for research?
IGF-1 LR3 research compounds are typically supplied as lyophilized powder in sealed laboratory vials to maintain stability during storage and transportation.
Why are peptides supplied in lyophilized form?
Lyophilization removes water from peptide solutions under controlled vacuum conditions, producing a stable dry peptide preparation suitable for long-term storage and laboratory use.
External Research References
- PubChem – Chemical Database
- NCBI – Biomedical Research Database
- ClinicalTrials.gov
- ScienceDirect – IGF Research
- ScienceDirect – Peptide Chemistry
- Wikipedia – IGF-1
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