Anti-Rab9a Polyclonal IgG Antibody: Overview and Applications

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The Anti-Rab9a Polyclonal IgG Antibody is a high-quality reagent designed for the detection and analysis of Rab9a, a member of the Rab GTPase family that plays a crucial role in vesicle trafficking, particularly in late endosomal transport. This antibody is widely used in research fields such as cell biology, molecular biology, and disease studies.

Key Features

  1. High Specificity
    The antibody is specific to Rab9a, ensuring minimal cross-reactivity with other Rab proteins. Its specificity makes it a reliable tool for studying Rab9a-related pathways.
  2. Polyclonal Nature
    Being polyclonal, the antibody recognizes multiple epitopes on Rab9a, providing robust and sensitive detection across a range of experimental conditions.
  3. Applications
    • Western Blotting: Detects Rab9a expression in cell lysates.
    • Immunofluorescence: Localizes Rab9a within cellular compartments.
    • Immunohistochemistry (IHC): Analyzes Rab9a in tissue samples.
    • Co-immunoprecipitation: Identifies interacting partners of Rab9a.
  4. Species Reactivity
    Typically validated for human, mouse, and rat Rab9a, but cross-reactivity with other species can vary.
  5. Source
    Generated from host animals such as rabbits, using highly purified recombinant Rab9a protein as the immunogen.

Background: Rab9a Function

Rab9a is a small GTPase involved in the regulation of vesicle trafficking between late endosomes and the trans-Golgi network. It is essential for maintaining cellular homeostasis and is implicated in processes such as:

  • Endosome-to-TGN Transport: Ensuring proper sorting and recycling of receptors like mannose-6-phosphate receptors.
    (See research on NIH Endosomal Trafficking for detailed mechanisms.)
  • Autophagy Regulation: Plays a role in autophagosomal maturation, as highlighted in studies on vesicle dynamics by PubMed.
  • Disease Associations: Rab9a dysregulation is linked to neurodegenerative diseases (e.g., Parkinson’s) and viral infections. Explore its role in disease pathology through NCBI Pathway Databases.

Validation and Protocols

Western Blot

  • Sample Preparation: Use lysates from Rab9a-expressing cell lines (e.g., HeLa).
  • Recommended Dilution: 1:1,000–1:5,000.
  • Positive Control: Cell lines with known Rab9a expression.
  • Negative Control: Rab9a knockout cell lysates.

Immunofluorescence

  • Fixation: Paraformaldehyde (4%) or methanol.
  • Permeabilization: 0.1% Triton X-100.
  • Recommended Dilution: 1:200–1:1,000.
  • Visualization: Confocal microscopy using a fluorescent secondary antibody.

Immunohistochemistry (IHC)

  • Fix Tissue: Formalin-fixed paraffin-embedded (FFPE) sections.
  • Antigen Retrieval: Heat-induced epitope retrieval (HIER) using citrate buffer.
  • Recommended Dilution: 1:100–1:500.

For detailed experimental protocols, refer to NIST Antibody Validation Guidelines.

Storage and Stability

  • Storage Conditions: Store at -20°C for long-term use. Avoid repeated freeze-thaw cycles.
  • Stability: Stable for up to 12 months under recommended storage conditions.
  • Formulation: Supplied in PBS with 0.02% sodium azide as a preservative.

Research Applications

  1. Cell Biology
    Investigate Rab9a’s role in vesicle trafficking and organelle dynamics.
  2. Neurodegenerative Diseases
    Study Rab9a dysregulation in diseases like Parkinson’s and Alzheimer’s. Access disease-specific studies at NCI Neurodegenerative Research.
  3. Virology
    Examine Rab9a’s role in viral replication, particularly in enveloped viruses. See related work at CDC Virology Division.
  4. Cancer Biology
    Analyze Rab9a-associated pathways in tumor progression and metastasis. Learn more at PubMed Cancer Research.

Why Choose This Antibody?

  • Rigorous Validation: Each batch is tested across multiple applications.
  • Reproducibility: Consistent performance in various experimental setups.
  • Comprehensive Support: Technical guidance and troubleshooting resources.

For additional information, explore trusted antibody databases such as Antibody Registry or NCBI Reagents.

Conclusion

The Anti-Rab9a Polyclonal IgG Antibody is a versatile and reliable tool for studying vesicle trafficking and its broader implications in cellular biology and disease research. Its robust performance across applications, combined with the availability of detailed protocols, ensures that it meets the needs of diverse research endeavors.