In the evolving field of targeted delivery systems, the dodecapeptide known as GE11 (YHWYGYTPQNVI) has become a cornerstone for researchers focused on the epidermal growth factor receptor (EGFR). As an enthusiast documenting my journey through biochemical reagents, I have frequently navigated the complexities of sourcing this specific ligand. Understanding the nuances of GE11 peptide sigma availability is essential for any laboratory or independent researcher looking to incorporate this molecule into their experimental workflows.
Understanding the GE11 Peptide Sequence and Function
The GE11 peptide was initially identified via phage display technology. It is a 12-amino-acid peptide that demonstrates a specific affinity for EGFR, with a dissociation constant (KD) reported at approximately 22 nM. Because GE11 is an active peptid by M Hallaji·2025·Cited by 11—This study focuses on an Fc-fusionpeptideconsisting of the Fc region of IgG1 and an epidermal growth factor receptor (EGFR)-targetingpeptide, GE11.Read more e, it has garnered significant interest fo GE11 was identified as a potential EGFR-specific peptidein 2005 by phage display and was shown to bind with a K d of 22.3 ± 0.4 nM to the EGFR.Read more r its potential as a targeting moiety. Unlike natural EGF, which can trigger receptor-mediated mitogenic signaling, the GE11 peptide sequence is often cited for its ability to bind the receptor without inducing the same level of internalization or proliferative signaling, making it a "smart" candidate for drug carrier systems.
Research Applications and Material Integration
My experience with functionalized materials, such as DSPE-PEG2000-GE11, highlights the versatility of this ligand. Researchers often use this conjugate to stabilize nanoliposomes for targeted delivery. Furthermore, the development of GE11-CSO-SPION micelles as an MRI contrast agent represents a sophisticated application for diagnostic imaging by L Zhang·2023·Cited by 5—TheGE11 peptide, a 12-amino-acidpeptidetargeting epidermal growth factor receptor (EGFR), was inserted into the surface protein loops of VLPs. The Dox Read more in high-EGFR-expression environments.
When discussing GE11-Se NPs (selenium nanoparticles), the focus shifts toward localized therapeutic delivery. The primary goal is to enhance the precision of antitumor studies. However, it is vital to acknowledge the technical challenges reported in recent literature: some studies suggest that GE11 exhibits an insufficient affinity to the EGFR when used as a monomer, leadin DSPE-PEG2000-GE11 can be used for drug delivery. For research use only. We do not sell to patients. DSPE- Read more g to ongoing investigations into multivalent presentations or Fc-fusion constructs to improve binding stability.
Navigating Procurement and Sigma Peptides
For those looking to buy research peptides, the procurement process requires a clear understand DSPE-PEG2000-GE11 | Lipid-EGFR Targeting Peptide ing of institutional policies. If you are searching for Sigma Peptide o GE11 peptide r related catalog entries, you will likely find that these materials are strictly designated for Research Use Only (RUO).
1. Verification: Always confirm the catalog number (e.g., ABIN2874272 for synthetic variants) and the purity levels required for your specific assay.
2. Availability: While you may search for gd11 or other catalog codes, ensure you are distinguishing between the specific EGFR-targeting GE11 and other unrelated sequences that may appear in broader Findbuy research peptidesand related products for scientific research at Merck. databases.
3. Documentation: Suppliers often require proof of affiliation with a research facility. The availability of peptides in bulk or custom synthesis formats is standard, but the lead time for custom modifications can vary.
E-E-A-T Considerations in Peptide Research
When utilizing these compounds, rigor is paramount. GE11 is studied as a pe GE11 peptide-conjugated nanoliposomes to enhance the ptide ligand across diverse platforms, from liposomes to radiotracers. As a researcher, I emphasize the importance of validating the binding affinity of your specific batch, as synthesis methods (such as ultrasound-assisted solid-phase synthesis) can influence the final efficacy. GE11 was identified as a potential EGFR-specific peptide over a decade ago, and while it remains a vital tool, the field is constantly refining how we utilize these sequences to avoid off-target effects.
Whether you are designing a new delivery system or testing the diagnostic potential of GE11, maintaining a clear chain of custody and adhering to the strict "Research Use Only" guidelines is critical. By focusing on the biochemical properties and the specific structural requirements of the EGFR-targeting mechanism, researchers can continue to push the boundaries of what is possible with these sophisticated molecular tools.