Description

Technical Parameters

Introduction

Humanin2

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Products Description

1. Classification System

Based on application and quality standards, Humanin raw material peptides can be classified into the following categories:

Category 1: Research-grade Humanin

These products are mainly used for cell experiments, animal model research, and mechanism exploration. Purity is generally between 95% and 98%, suitable for most basic research needs, with clear requirements for batch consistency and traceability.

Category 2: High-purity research-grade Humanin

Purity typically reaches over 98%, even 99%, used for research requiring high sensitivity to experimental results, such as signal pathway analysis and receptor binding experiments. This category has higher standards in synthesis, purification, and detection.

Category 3: Custom-modified Humanin

These are produced by optimizing the structure or replacing amino acids based on the natural sequence to improve stability or bioactivity, commonly found in cutting-edge research and the development of novel functional peptides.

2. Main Advantages and Features

The core advantages of Humanin lie in its broad-spectrum cell protection properties and mitochondrial regulatory capabilities. Studies show that Humanin effectively counteracts apoptotic signals under various cellular stress states, particularly in neurons, cardiomyocytes, and pancreatic β-cells.

Its key advantages include:

First, it possesses significant anti-apoptotic capabilities, inhibiting the activity of various pro-apoptotic proteins.

Second, it protects cell survival under oxidative stress and energy metabolism disorders.

Third, it has the potential for interactive regulation with insulin signaling, inflammatory responses, and aging-related pathways.

Fourth, it has a small molecular weight, well-defined structure, is easy to synthesize and modify, and offers strong controllability in research.

3. Physicochemical Properties

Humanin is a small molecule peptide with a molecular weight of approximately 2.6 kDa. While structurally stable, it is sensitive to environmental conditions. Its basic physicochemical properties are as follows:

It is a solid powder at room temperature and is non-volatile.

It is readily soluble in water and weakly buffered solutions, with optimal solubility under neutral or slightly acidic conditions.

The structure may degrade under high temperature, strong acid, or strong alkaline conditions.

It is sensitive to repeated freeze-thaw cycles; long-term use is recommended via aliquoting. Its isoelectric point is close to neutral, and it is relatively mild in solution, making it suitable for various in vitro experimental systems.

4. Appearance and Color Characteristics

High-quality humanin raw material peptides are typically white or off-white lyophilized powders with a fine and uniform texture. High-purity products show no obvious impurities or discolored particles visible to the naked eye.

A yellowish color or clumping is often related to insufficient purification, excessively high storage humidity, or moisture absorption during transportation. High-quality humanin produced according to regulations should maintain a loose, porous powder structure after lyophilization, facilitating rapid reconstitution.

5. Brief Description of Mechanism of Action

At the molecular level, humanin exerts its effects through multiple pathways. On one hand, it can directly interact with pro-apoptotic proteins, blocking cell death signals; on the other hand, it can also activate the expression of cell protection-related genes through membrane receptor-mediated signaling pathways.

Furthermore, humanin is closely related to mitochondrial function and is considered a "self-protective signaling molecule" released by cells under stress, possessing potential value in energy homeostasis and metabolic regulation.

6. Applications and Research Directions

Currently, Humanin applications are primarily concentrated in scientific research, including but not limited to the following:

Neurodegenerative disease model research

Metabolic disease and pancreatic function research

Mitochondrial function and cellular aging mechanisms research

Antioxidant and cellular stress response research

Basic research on functional peptide and biomimetic peptide design

As research deepens, its potential application boundaries continue to expand.

7. Quality Control and Testing

High-quality Humanin raw material peptides undergo rigorous quality control processes, including but not limited to:

High-performance liquid chromatography (HPLC) for purity and impurity analysis

Mass spectrometry (MS) for molecular weight confirmation

Amino acid sequence alignment to ensure structural accuracy

Moisture content and residual solvent detection

Batch-to-batch stability and complete test reports are important indicators for evaluating Humanin product quality.

8. Storage and Stability Recommendations

Humanin raw material peptides should be stored in a low-temperature, dry, and light-protected environment. Unopened, long-term storage at -20°C is recommended; after dissolution, use should be limited to a short period, avoiding repeated freeze-thaw cycles. Proper storage conditions are crucial for maintaining its activity and structural integrity.

9. Conclusion

Humanin, as a representative mitochondrial-derived functional peptide, occupies an important position in modern life science research. Its well-defined molecular structure, multiple biological potentials, and excellent research adaptability make it a crucial member of the high-end peptide raw material category. A systematic understanding of the classification, properties, appearance, advantages, and applications of humanin will help researchers select and utilize this high-quality peptide resource more efficiently, and will also provide a solid foundation for future development in related fields.