PSMA-11 without HBED chelator is an unchelated form of the PSMA-binding peptide used to examine receptor affinity independent of metal coordination. Removal of HBED alters polarity and steric properties, highlighting peptide-only contributions to binding. Researchers analyze its conformation and interaction kinetics. Applications include PSMA-ligand design, peptide-only binding studies, and structure-activity evaluation.
CAT No: R2755
PSMA-11 without HBED chelator is a synthetic peptide derivative specifically engineered for research applications targeting the prostate-specific membrane antigen (PSMA). As a peptide-based ligand, it retains the essential binding motif for PSMA recognition but omits the HBED-CC chelating group typically used for radiometal labeling. This structural modification provides researchers with a versatile tool for studying the binding interactions, structural dynamics, and biological roles of PSMA in various experimental contexts. Its unique configuration makes it especially valuable in investigations where the chelation of metals is not required or where alternative conjugation strategies are desired, thereby broadening the scope of PSMA-related research.
Target validation: The PSMA-targeting peptide core of this compound is highly suitable for in vitro and in vivo studies aimed at validating PSMA as a biomarker in prostate cancer and other PSMA-expressing tissues. By using the peptide without the HBED chelator, researchers can focus on the intrinsic binding properties and specificity of the ligand, eliminating potential confounding effects introduced by metal chelation. This enables more precise characterization of ligand-receptor interactions, facilitating the development of next-generation targeting agents and supporting fundamental studies on PSMA biology.
Peptide-protein interaction studies: The absence of the HBED-CC chelator allows for detailed exploration of the direct interactions between the peptide ligand and the PSMA protein. Researchers can employ this compound in affinity assays, surface plasmon resonance, or other binding kinetics platforms to dissect the molecular determinants of PSMA recognition. Such studies are critical for rational ligand design, structure-activity relationship analysis, and optimization of peptide-based targeting agents for diagnostic or research use.
Conjugation and probe development: Without the HBED chelating moiety, this peptide provides a flexible scaffold for site-specific conjugation to a wide range of reporter groups, fluorophores, or alternative chelators. This adaptability is particularly advantageous for custom probe synthesis, enabling the creation of tailored imaging agents, biosensors, or affinity tags. Researchers can exploit the free functional groups on the peptide to attach novel labels, facilitating the development of customized tools for cell labeling, imaging, or biochemical detection of PSMA-expressing cells.
Cellular uptake and trafficking analysis: The HBED-free form of PSMA-11 can be utilized to investigate the mechanisms of cellular uptake, internalization, and intracellular trafficking of PSMA-targeted peptides. By labeling the peptide with non-metal tags or tracking its interactions in live-cell assays, scientists can gain insights into the endocytosis pathways and subcellular localization of PSMA ligands. Such studies are instrumental in understanding ligand processing, optimizing delivery strategies, and evaluating the impact of structural modifications on biological behavior.
Peptide synthesis and modification research: The simplified structure of this PSMA-targeting peptide, lacking a bulky chelator, makes it a useful model for peptide synthesis optimization and modification strategies. Synthetic chemists and peptide engineers can use it as a benchmark for developing new solid-phase synthesis protocols, testing alternative conjugation chemistries, or introducing site-specific modifications. This application supports advances in peptide drug design, labeling technologies, and the creation of multifunctional bioconjugates for research and diagnostic platforms.
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