Viral Peptides
Viral Peptides - Related Videos
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.
00:57
Viral Recombination
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2019
Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment. Viral Recombination Can Create New Diseases Some diseases can infect multiple species. For example, pigs can be infected by some human and...
00:56
Viral Structure
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2019
Viruses are extraordinarily diverse in shape and size, but they all have several structural features in common. All viruses have a core that contains a DNA- or RNA-based genome. The core is surrounded by a protective coat of proteins called the capsid. The capsid is composed of subunits called capsomeres. The capsid and genome-containing core are together known as the nucleocapsid. Structural Classes of Viruses Many criteria are used to classify viruses, including capsid design. Most viruses...
03:21
Peptide Purification: An RP-HPLC-based Technique to Extract Peptides from Digested Protein Lysates
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2023
In this video, we demonstrate reversed-phase high-performance liquid chromatography to purify peptides from a digested protein lysate mixture. These purified peptides are then lyophilized and stored for downstream applications. Analysis of peptides can help understand the mechanics involved in cellular signaling and cancer.
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.
FAQs
Sequence, structure, charge, and hydrophobicity are central determinants of activity. Sequence specifies the molecular features available for recognition or binding, while structure affects how those features are presented. Charge and hydrophobicity influence interactions with host molecules and membranes. Adjusting or comparing these properties helps researchers relate peptide composition to measurable biological effects.
Different sequence features and structural presentations allow viral peptides to participate in distinct biological interactions. Some arrangements favor binding to host molecules or contact with membranes, whereas others form recognizable epitopes, meaning regions detected by immune cells. This distinction lets experiments examine molecular interaction and immune response as related but separate outcomes.
A peptide represents a defined region rather than the full viral protein, allowing researchers to study selected molecular features in a more controlled experiment. This focused design can help associate a particular sequence or epitope with binding, membrane interaction, or immune recognition, reducing the number of viral-protein features considered at once.
Researchers examine how antibodies or T cells respond to selected peptide sequences representing viral regions. Comparing responses across these defined sequences helps identify which regions are recognized by the immune system. The resulting map can clarify patterns of host recognition and provide information useful for immunological studies, diagnostic assay development, or vaccine design.
Viral peptides can provide defined targets for testing whether a biological sample contains antibodies or other immune responses directed toward particular viral regions. Their controlled composition supports focused assay design and interpretation. By linking detection to selected sequences, researchers can investigate which viral features contribute to measurable recognition in a diagnostic setting.
In antiviral research, peptides provide defined molecular features for evaluating how compounds affect relevant interactions or responses. In vaccine research, recognized peptide regions can help identify candidate immune targets and shape design decisions. These applications connect sequence-level information with experimental outcomes while avoiding the need to study every feature of an entire viral protein simultaneously.