- Tel: 858.663.9055
-
Email: info@nsjbio.com
- Tel: 858.663.9055
- Email: info@nsjbio.com
TMED8 antibody detects Transmembrane emp24 domain-containing protein 8, a membrane-associated trafficking protein encoded by the TMED8 gene on chromosome 14q11.2. TMED8 is a member of the p24 cargo receptor family, which plays a key role in protein transport between the endoplasmic reticulum (ER) and Golgi apparatus. The TMED8 protein localizes to the ER-Golgi intermediate compartment (ERGIC) and Golgi membranes, where it regulates vesicle formation, cargo selection, and quality control of secretory proteins. Structurally, TMED8 contains a luminal GOLD (Golgi dynamics) domain, a coiled-coil region, a single transmembrane helix, and a short cytoplasmic tail harboring motifs for coat protein complex interaction.
TMED8 antibody identifies a protein that contributes to the maintenance of Golgi structure and trafficking efficiency. The p24 family proteins, including TMED8, function as cargo receptors that facilitate selective packaging of client proteins into COPII-coated vesicles at the ER membrane. They also participate in retrograde transport via COPI vesicles, ensuring the recycling of resident ER enzymes and chaperones. TMED8 specifically regulates the trafficking of glycoproteins and receptor complexes involved in cell signaling and immune response.
At the cellular level, TMED8 is localized predominantly to the endomembrane system, reflecting its function in the secretory pathway. Through its luminal GOLD domain, TMED8 mediates protein-protein interactions that stabilize cargo-receptor complexes, ensuring proper folding and export from the ER. Structural studies of the p24 family suggest that TMED8 forms oligomeric complexes with other p24 members, such as TMED2, TMED9, and TMED10, enhancing vesicular trafficking specificity.
Functionally, TMED8 has been implicated in immune regulation and inflammatory signaling. It is known to interact with components of the TGF-beta receptor pathway, influencing receptor stability and cell surface expression. Dysregulation of TMED8 expression may lead to impaired protein secretion, ER stress, and altered immune responses. In addition, emerging studies suggest a role for TMED8 in tumorigenesis, where aberrant expression correlates with altered cytokine signaling and cell adhesion. Gene expression analyses show TMED8 upregulation in certain cancers, including breast and colon carcinoma, linking it to enhanced secretory pathway activity.
The TMED8 gene�s chromosomal location on 14q11.2 places it near other trafficking-related genes, and its promoter region includes binding sites for transcription factors involved in ER stress response. Evolutionarily, TMED8 belongs to the TMED/p24 protein family, a conserved group essential for vesicular transport and Golgi organization. Defects in this pathway can lead to congenital disorders of glycosylation and impaired immune signaling.
Immunohistochemical staining using TMED8 antibody shows membrane and perinuclear localization consistent with Golgi and ER distribution, particularly in hepatocytes, epithelial cells, and macrophages. TMED8 antibody from NSJ Bioreagents provides a valuable research tool for studying protein trafficking, ER-Golgi dynamics, and secretory pathway regulation.
Optimal dilution of the TMED8 antibody should be determined by the researcher.
E.coli-derived human TMED8 recombinant protein (Position: S34-S325) was used as the immunogen for the TMED8 antibody.
After reconstitution, the TMED8 antibody can be stored for up to one month at 4oC. For long-term, aliquot and store at -20oC. Avoid repeated freezing and thawing.
Your bulk quote request has been submitted successfully!
Please contact us if you have any questions.