Certainly! Enhancing the product information for Human IL-4 (Interleukin 4) can provide potential users with a comprehensive understanding of its handling, benefits, and applications. Here's a detailed breakdown:


Storage
- Temperature: Store at -20°C or lower for long-term storage. For short-term storage (up to 2 weeks), 2-8°C is acceptable.
- Conditions: Keep the product away from light and moisture. Ensure that the vial is tightly sealed when not in use.
- Stability: Avoid repeated freeze-thaw cycles to maintain product integrity. Aliquoting the product into smaller volumes can help prevent this.


Product Description
- Nature: Human IL-4 is a cytokine that plays a critical role in the immune response by influencing the differentiation of naive T helper cells to Th2 cells.
- Source: Recombinant protein expressed in E. coli or other expression systems.
- Formulation: Typically provided in a lyophilized powder or solution, often with a stabilizing buffer.
- Molecular Weight: Approximately 15 kDa.


Key Features
- Purity: High purity, typically >95% as determined by SDS-PAGE and HPLC.
- Activity: Biologically active, suitable for cell culture and in vivo experiments.
- Reproducibility: Consistent batch-to-batch performance ensuring reliable experimental results.
- Safety: Tested to be free from endotoxins and other contaminants.


What's Included
- Vial of Human IL-4: Supplied in aliquots of varying concentrations depending on user requirements.
- Certificate of Analysis: Includes detailed information on the purity, activity, and batch number.
- Product Manual: Instructions for reconstitution, storage, and handling.
- Safety Data Sheet (SDS): Provides safety information for handling and disposal.


Applications
- Research: Used in studies of immune regulation, allergic responses, and asthma.
- Cell Culture: Supports the growth and differentiation of specific immune cell types, particularly Th2 cells.
- Therapeutic Development: Investigation of potential therapeutic roles in modulating immune responses.
- Diagnostics: Utilized in assays to measure the presence and activity of IL-4 in various biological samples.


Additional Considerations
- Handling: Always work under sterile conditions to prevent contamination.
- Use: Follow the recommended concentrations and protocols for specific applications to ensure optimal results.
- Technical Support: Contact customer service for additional assistance or troubleshooting tips.

This enhanced product information should assist users in making informed decisions about utilizing Human IL-4 in their research and applications.