Peptide Conjugation Method
Peptide Conjugation Method - Related Videos
04:59
Evaluating the Intracellular Distribution of Virus-Derived Peptide-Modified Antibody Conjugates
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2025
This video demonstrates the process of assessing the intracellular distribution of virus-derived peptide-modified antibody conjugates using confocal microscopy. The viral-derived nuclear localization sequence directs antibody-conjugates within the cytoplasm, confirmed through immunostaining and fluorescence measurement.
11:58
Initial Evaluation of Antibody-conjugates Modified with Viral-derived Peptides for Increasing Cellular Accumulation and Improving Tumor Targeting
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Cited by 5 •
2018
Viral-derived peptides coupled to antibody-conjugates (ACs) is an approach gaining momentum due to the potential of delivering molecular payloads with increased tumor cell accumulation. Utilizing common methods to evaluate peptide conjugation, AC and payload intracellular accumulation, and tumor targeting, this protocol helps researchers during the key initial development phases.
20:23
A Lectin HPLC Method to Enrich Selectively-glycosylated Peptides from Complex Biological Samples
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Cited by 13 •
2009
Lectin-conjugated POROS beads were employed for HPLC. Glycopeptide standards served as positive and negative controls. MARS-14 depleted, trypsin-digested human plasma was chromatographed and flow-through (FT) and bound fractions collected for ESI-LC-MS/MS analyses. Glycopeptides were enriched in the bound fraction as compared to FT.
04:00
Immunoaffinity Based Extraction of Ubiquitinylated Peptides: A Technique to Selectively Extract Ubiquitin Tagged Peptides from Purified Peptide Fractions
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2023
This video describes a method to extract and purify ubiquitinylated peptides containing remnant di-glycine peptides from a complex peptide mixture. The presented method may help in identifying original ubiquitination sites in the protein.
12:52
Conjugation: A Method to Transfer Ampicillin Resistance from Donor to Recipient E. coli
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2023
Source: Alexander S. Gold1, Tonya M. Colpitts1 1 Department of Microbiology, Boston University School of Medicine, National Emerging Infections Diseases Laboratories, Boston, MA First discovered by Lederberg and Tatum in 1946, conjugation is a form of horizontal gene transfer between bacteria that relies on direct physical contact between two bacterial cells (1). Unlike other forms of gene transfer, such as transformation or transduction, conjugation is a naturally occurring process in which...
FAQs
Reactive groups provide the chemical points where the peptide and its partner can connect. Amines, carboxyls, and thiols are highlighted as important complementary groups because bringing suitable partners together enables formation of a stable covalent bond. Selecting and positioning these groups helps researchers attach proteins, polymers, drugs, or imaging agents while retaining the peptide’s intended functional sequence.
Controlled conditions help the coupling reaction form the intended stable bond rather than compromising the peptide’s functional sequence. This control is important because the conjugate must retain properties contributed by both linked components. In bioengineering, preserving peptide function supports downstream molecular recognition and cellular interactions, while the attached molecule can contribute altered solubility, stability, or other useful behavior.
Covalent attachment creates a stable chemical connection between the peptide and its partner, allowing the combined construct to express properties from both components. This is distinct from merely placing molecules together without forming that bond. The resulting design can integrate peptide-based recognition or function with characteristics supplied by a polymer, drug, protein, or imaging agent for engineered biological uses.
Researchers can use conjugation design to tune solubility, stability, molecular recognition, and cellular interactions. The selected partner and the way it is linked to the peptide determine which complementary properties become part of the final construct. This flexibility supports development of conjugates tailored for diagnostic, therapeutic, and engineered biological applications rather than relying on the peptide alone.
Peptide conjugation supports targeted delivery, biomaterial modification, biosensor design, and molecular probe development. In targeted delivery, the linked components can combine peptide function with a drug or other cargo. In biomaterials and biosensors, conjugation can add peptide-based molecular recognition, while imaging-agent conjugates can contribute to molecular probe development for biomedical research.
The partner is selected according to the property it can add to the peptide-based construct. Proteins or polymers can provide complementary material or biological characteristics, whereas drugs and imaging agents support therapeutic or diagnostic goals. By linking these components through compatible reactive groups, researchers create conjugates whose solubility, stability, recognition, or cellular interactions suit a specific bioengineering purpose.