简介：
Overview
This protocol describes a purification method for the human calcium binding protein S100A12 and its ion-induced oligomers. The technique maintains high yield of pure and endotoxin-free protein for human monocyte stimulation assays.
Key Study Components
Area of Science
- Biochemistry
- Cell Biology
- Immunology
Background
- S100A12 is a calcium binding protein involved in immune responses.
- Understanding its oligomers can provide insights into its function as a pattern recognition receptor ligand.
- Purification methods are critical for studying protein interactions and functions.
- Endotoxin-free proteins are essential for accurate biological assays.
Purpose of Study
- To develop a reliable purification protocol for S100A12.
- To generate homo-oligomeric proteins for functional assays.
- To explore the mechanistic aspects of S100A12 in immune responses.
Methods Used
- Cut dialysis tubing to an appropriate length for protein purification.
- Utilize chemical cross-linking for oligomer generation.
- Employ size exclusion chromatography for protein separation.
- Conduct downstream assays to evaluate protein function.
Main Results
- Successfully purified S100A12 with high yield and purity.
- Generated various ion-induced oligomers for functional studies.
- Demonstrated the potential of S100A12 as a target for new interventions.
- Provided a detailed protocol for reproducibility in research.
Conclusions
- The purification method is effective for obtaining S100A12 and its oligomers.
- This study enhances understanding of S100A12's role in immune responses.
- Future research can leverage this protocol for therapeutic development.
What is S100A12?
S100A12 is a calcium binding protein involved in immune system regulation.
Why is endotoxin-free protein important?
Endotoxin-free proteins are crucial for accurate biological assays to avoid skewed results.
What methods are used for purification?
The protocol uses dialysis, chemical cross-linking, and size exclusion chromatography.
What are the applications of S100A12?
S100A12 can be studied for its role in immune responses and potential therapeutic targets.
How can this protocol be accessed?
The protocol is available in the JoVE video library for detailed viewing.
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